wildlife

Ep 020: Wildlife Rehabilitation with Jackie Edmunds and Dave Mackler

Jackie Edmunds in the field! (photo courtesy of DCHS)

Dave Mackler with a reptile friend (photo courtesy of DCHS)

In this episode we answer questions like “What should we do when we see sick, injured, or orphaned wildlife?” and learn about all the care and expertise that wildlife rehabilitators can provide at the Dane County Humane Society (DCHS) Wildlife Center with Wildlife Program Manager Jackie Edmunds and Wildlife Rehabilitator and Educator Dave Mackler.

Learn More about DCHS

Subscribe to QuACK on Spotify, iHeart Radio, Apple Podcasts, or your favorite podcast app!

Transcription


Hey, and welcome to Questions Asked by Curious Kids, or QuACK, a podcast made by Southern Wisconsin Bird Alliance. This is a podcast where we gather questions about nature from kids to be answered with a local expert. My name is Mickenzee, I'm an educator, and I'll be the host for this series. This episode I'll be interviewing Jackie Edmunds and Dave Mackler. Jackie's been on the pod before in our Raptors episode. She's the wildlife program manager at Dane County Humane Society Wildlife Center, and Dave is a wildlife rehabilitator and educator. Today, they'll be answering questions about wildlife rehabilitation and giving us their expert advice for what to do when we see sick, injured, or even orphaned wildlife. For this episode, we're recording at the Humane Society, so you might hear some funny noises or some furry friends in the background making their voices heard. Okay, let's jump in with Jackie and Dave

-----

Mickenzee: All right, welcome back Jackie, thanks for joining us again. And welcome on, Dave. Today we're here to talk about wildlife rehab and what we should do when we see animals that look sick or maybe baby animals we’re worried that they're not getting cared for. And we're here at Dane County Humane Society in the Wildlife Center. So would you guys mind telling us what your roles are here?

Jackie: Well, I'm Jackie, and I'm so excited to be on this segment again, it's so much fun. I'm the wildlife program manager for the Humane Society and I've been doing wildlife rehabilitation now for about 16 years. So I run a program of seven full-time staff and a couple apprentices every year. Our wildlife rehabilitation program in general has 25 interns a year and 150 volunteers, and then also a side branch with our education program. So kind of in charge of all of the things, pretty much. 

Mickenzee: Oh, wow, that's so awesome! 

Dave: And I am Dave. I've been with DCHS for about two years now, some of that as an intern. I'm a licensed wildlife rehabilitator, and I am our new wildlife educator. I help spearhead our new education program. 

Mickenzee: Great! That’s so awesome. So, one of the questions we get a lot at the Bird Alliance is like, what should we do when we see hurt or injured wildlife? 

Baby Opossums (photo courtesy of DCHS)

Jackie: Yeah, I think it's good to know that not all wildlife are sick and injured, it's always good to know for sure. And usually sitting, watching, observing the animal first to be absolutely positive that it has some kind of injury is really important. Sometimes people will see an animal on the ground and they're not sure what age, what species it is. It all comes down to the time of year or if they saw something happen to an animal that'll make us kind of decide whether or not this animal should come in for treatment. So it's always best to contact a licensed wildlife rehabilitator no matter what the situation is to get advice first. So usually I tell people, look, listen, watch for a good period of time. I mean it could be 15 minutes, it could be 30 minutes. Just observing what you see, like what is the animal doing? How is it reacting? What's its attitude like? How close have you gotten to the animal for any reason so that you know okay, this animal is not acting normally for its situation. And then especially being careful during the baby season, which for us is like April through October, when baby animals are on the ground all the time when they're dispersing from their nests. And so sometimes people say “oh, it's sick or it's injured”, it might be totally healthy. So take a picture, describe it. Give us all the details as much as possible because that information helps us a lot so that we can figure out whether it is actually sick or injured right away.

Mickenzee: Right, sometimes I see Robin fledglings in my backyard and they just, they're awkward! And it's okay.

Jackie: Yeah! And there are some species, when I think of our native species of Killdeer is a great example. They will fake a broken wing just to try to get humans away from their babies or their nest sites. And so it might look like it's injured but might not actually be injured.

Micknezee: Yeah. 

Jackie: And sometimes people might suggest an animal's also orphaned and the parents aren't there, but the parents aren't always going to directly be with their babies at all times. And that depends on species as well.

Mickenzee: Right, right. All animals have different ways of caring for their young or not caring for their young. Alright, and as wildlife rehabilitators, what care are you guys able to give here?

Jackie: Yeah, well once the animal has been contained and that's where, you know, if you're going to send us a picture or tell us “hey, this animal's injured” and we agree yep, it's injured, it needs help. We're hopefully able to take that animal for all of the next steps afterwards. So once it's safely transported to the wildlife center, that's where we can give it a full medical evaluation, we can give it all the treatment it needs. A lot of times for animals, keeping it in a quiet, dark space without any sort of stimulus around them is super important. The stimulus can really stress the animals out because they don't know that we're trying to help them, they think we're a giant predator that wants to eat them. And so we've now captured them in this very scary situation, put them in a box and said, okay here you go you're now in a brand new place in a wildlife center where there's, you know, human objects and activity around them. So the care that we provide is very hands-off afterwards. So after we’ve medically evaluated, given support, pain medications, fluids, everything else, diagnostics to figure out what's wrong with them, then it's really the treatment phase of keeping them in nice, quiet, safe environments, lots of food, enrichment, whatever is necessary for those species, until they can actually really get better. So we have a lot of different husbandry and care protocols for different species. So I'm not sure if you want to talk about some of the ones you've gotten to work with. 

Snapping Turtle with babies (photo courtesy of DCHS)

Dave: Oh gosh, so many different species. I mean, we at DCHS take all native species, with a few exceptions. And there's a lot of variance between different species as far as what they need to thrive and what they have in their natural lives. So there's a lot of care that goes into planning. Setting up an enclosure for a Snapping Turtle is slightly different than setting it up for a Blanding’s Turtle, for example. There's a lot of variance between different bird species. And that is something that our team is able to provide that sort of the average person wouldn't necessarily have the know-how to set up a reasonable enclosure for a random animal that they found on the side of the road.

Mickenzee: Yeah, that's really important to recognize is, as an animal lover, like, you think you might know what's best for an animal, but you need a lot of expertise to set that up for them. 

Jackie: And the kind of care that they're getting is so different than you could provide at home. I think that's another thing that, you know, when you think of wildlife rehabilitation, I think of veterinary medicine right away. And I think of, you know, being in that animal's place in the wild. If you were hit by a car, you know, a human hit by a car, that probably hurts a lot, and you would probably be sitting on the side of the road hoping that an ambulance would take you to the hospital, right? So that's my best way to describe how wildlife might be feeling, and we can't say that for a fact, but I'm pretty sure they're probably in a lot of pain if they have been injured. And so getting them to the hospital, which is a wildlife rehab center, right away, is crucial. You know, it’s crucial for their survival. And that's where we can offer that supportive care, besides all the food and the husbandry that goes for all of the species which is hard to know, you then can also have our veterinarians prescribing medications that they need and being able to give them the right kind of, you know, splints or wraps or cage rest or anything that they would need to heal from something like a fracture. You're not going to be able to do that at home typically without that kind of expertise. 

Mickenzee: Totally, totally. So then what is your favorite success story here at the Humane Society?

Dave: Yeah, I mean, so many! But to, I guess, keep on the theme of baby animals. One of the things that we do here that I really like, we're going into turtle season right now. A lot of turtles, across the species spectrum, but we get a lot of Painted Turtles and Snapping Turtles particularly, I would say. But a lot of turtles right now are crossing roads. They do not lay their eggs in water, they lay them in soft soil, usually across the road from where they're hanging out. And so we do get a lot of hit-by-car turtles. Which I mean, in and of itself is just a good reminder to be aware of what we're doing as people. But, the lovely thing that we're able to do, even if it is a not so good outcome for the individual turtle, we are able to harvest the eggs. And we have a pretty awesome team of volunteers that incubate those eggs at home, and we're able to release those hatchlings where the mother was. So able to, I guess, carry on her line if it's a not so good outcome. 

Mickenzee: Oh, that's so cool. How does one get the ability to incubate turtles at their house?

Jackie: Well, that's becoming a volunteer, so it is a very specialized process. So yeah, we have, you know 100, 150 volunteers with the program and they're all learning about the different wildlife care. So, you know, having that whole team of people together to do all of the different, you know, tasks that you might have to do for an animal for a day, one of those includes being a turtle volunteer. And there's a few specialized folks that do keep them in a very nice, you know, type of environment. Kind of specialized for humidity and temperature and the type of substrate that would be similar to what they'd be finding in the wild if their mom was looking for that soil. Maybe it's a little more sandy, a little, you know, whatever depth is needed. And we have to number all of the turtle eggs, we have to watch them, make sure that the eggs are safe, that they're not moved or touched or anything so that they have hopefully the best chance of being able to hatch appropriately. And then once they see, you know, the little turtle eggs starting to hatch, which is amazing, it takes them a little bit to get out of that shell and break open. And that's probably one of the fan favorites, I would say, in baby season, like Dave said, is seeing the tiny turtles the size of a quarter just coming out of their tiny ping pong ball of an egg. And so the volunteers are monitoring every day, once they start hatching, to make sure they get transported, you know, right back to the wildlife center and they can go into their enclosures to practice swimming, getting to eat their first time, getting a medical evaluation. So it's a really fun process, but yes, it's a very specialized type of volunteer position. 

Mickenzee: Yeah, that sounds super cool! Any listeners, if you want to be a turtle volunteer, check it out. Okay, so this is still on the theme of baby animals. Our students often will maybe tell us a story, or talk about seeing baby animals all alone and feeling worried for those baby animals. What are signs that we could look out for that a baby animal is actually being taken care of or is totally okay on its own? 

Owlet (photo courtesy of DCHS)

Jackie: I'll start a little bit just talking about songbird babies, because those are my favorite areas, I think. And there are so many different types of songbirds out there, they all nest in different areas. Some are high up in the trees, some are low down on the ground, some are in bushes, and they all have different timing throughout the year. So the baby animals, you know, they are going to either fledge from their nests or they might not. Baby birds if they fledge from their nest after mom has been sitting on them, maybe mom or dad incubating the eggs, they hatch and then the parents are coming to feed them. It could be every 15 minutes throughout the day, even shorter. 

Mickenzee: Busy, busy. 

Jackie: It's incredibly busy. It's a full time job here at the Wildlife Center to feed all of those babies that are here. But there is eventually that time where most of them will go to the edge of the nest, and they take that first leap of faith off the edge and say, I can do it. I even watched an entire Robins nest do this at my house last year, which was so exciting to watch the parents vocalizing until the very last one. And it was like 20 minutes of a back and forth conversation like, you can do it, buddy, you can go, you can go out of the nest. And it was so great, he finally did. So, you know, they go through that period of time where they're probably (anecdotally) scared to jump out, but they do have to eventually to learn what they need to do as a species. So I love seeing the Robins when they're here in rehabilitation go from the little hatchlings that are in their nest to then jumping out of the nest, and we call them nest hoppers at that age. And they go to our outdoor enclosures and that's where they're learning how to forage for insects on the ground, so we might put crickets and red worms and things out there. And they get so excited to see all the wiggly moving worms and learning how they can maybe do that in the wild, just like their parents would be teaching them. So it's so important that they get that type of enrichment and the training that their parents would otherwise give them in the wild. So for me, I think it's knowing that some animals are going to be on the ground and that's appropriate for them. I think Robins is the best example of that just because they forage for worms on the ground, they have to learn how to be robins. It could be 7 to 10 days before they're actually flighted. So they might be on the ground, look really awkward, and they're only flying a few, you know, hops or short distances doesn't mean that they're injured,

Mickenzee: Right.

Jackie: For us, we're looking at their, again their attitude. Are they really depressed? Maybe they're laying down on the ground. Maybe it's a hot day though, that could happen, you don't know if they're sick or maybe they're just trying to take a break from the heat. But it could be that that animal keeps his eyes closed all the time, and it looks like it's sleeping. You know, that's probably not the best situation, but we're going to pair it with what do we see visible? You know, blood, do we see a fracture, do we see anything else? Have you had some cases like that, any other injuries. 

Dave: Yeah, I mean I think the big thing to me and the thing that I talk to during my educational groups is lean on your local rehabilitators. Not everyone has experience identifying these things, like Jackie was saying, broken bones, bleeding, signs of dehydration, you're not necessarily going to recognize that. And there is, again, a ton of species variation. You were talking about birds fledging from the nest. So we're sort of trained to think like, oh it's okay, it's normal for a fledgling to be hopping around on the ground. But then you have things like Barn Swallows who are able to fly right when they leave the nest. So there is a lot of unique variation and the average, I guess, member of the public shouldn't be expected to know all those things off the top of their head. I mean, we could sit here talking about individual babies all day, but at the end of the day, there are rehabilitators in everyone's area who are eager to help wildlife. And before you intervene in any way, the best thing to do is take a picture of it, monitor it, and reach out to a local rehabilitator who can assist you with the best next steps for that.

Micknezee: Totally. 

Jackie: And like what Dave is saying, if you were to see that swallow on the ground, we'll know right away, that's not normal comparing it to that Robin. So again, yeah, not everybody knows all of that, but we're trained to hopefully study that information and be able to give you that best advice. So although the generic advice is out there like, oh you see a baby bird on the ground leave it be, well it depends on what species. Other things I would mention would be if you know for sure maybe a dog or a cat or something has maybe bitten a baby animal. We see a lot of interactions with companion animals and wildlife during the summer season when they're out of the nest, that's almost always going to indicate some sort of treatment or evaluation is necessary by a rehabilitator. You can always call to ask, you know, is it better to be safe than sorry? Always better to be safe, call, ask. Even if it's good news and we say, hey, you know, this is okay, we can put this animal back to the care of their parents, that's going to be the best thing. Great. And if not, if we notice something from a photo or video, we're going to say, hey, this looks like this is abnormal, we should have you bring it in. And even jumping from those nests, they can fracture toes and feet and legs and things. And so they go from 60ft trees down to the ground, you just don't know for sure. And again, that monitoring effort really helps I think. So there's some very clear, obvious things, like you see the blood, you see the fractures. Those are, okay probably going to be a yes to come into rehabilitation. But regardless it's best to monitor first and then hopefully safely contain the animal when instructed by a licensed rehabilitator. 

Mickenzee: Yeah, so just lean on the knowledge of experts in your community. That's great. Thank you so much for taking time out today and teaching us and giving us some advice on what to do. Thanks! 

-----

If you are interested in learning more about Dane County Humane Society Wildlife Center or volunteering with them, please head to giveshelter.org. If you're interested in learning more about Southern Wisconsin Bird Alliance programs and resources, please head to our website swibirds.org and check out free lessons, games and activities, the event calendar, and even our community science programs.

If you have a big nature question that you'd like to have answered, please have a grown up or teacher submit your question to info@swibirds.org with the title “Questions for QuACK”. Make sure to include your grade and the school that you attend so I can give you a shout out. Thanks for tuning in and I hope you join us next time on QuACK!


Check out SoWBA’s free lessons, games, and activities!⁠

⁠Get out and explore nature with us! 

Make a donation to Southern Wisconsin Bird Alliance

Audio Editing by Mickenzee Okon

Transcription by Juanita Duarte

Logo design by Carolyn Byers and Kaitlin Svabek

Music: “The Forest and the Trees” by Kevin MacLeod

Ep 015: Tracks with Jamie Nack

Jamie Nack with Wood Turtle (photo courtesy of Jamie Nack)

In this episode, we answer questions like "do animals cover their tracks?" and learn about how animals with bare tails handle winter weather with our tracks expert, Extension Senior Wildlife Outreach Specialist, Jamie Nack!

Subscribe to QuACK on Spotify, iHeart Radio, Apple Podcasts, or your favorite podcast app!

Transcription


Hey, and welcome to Questions Asked by Curious Kids or QuACK, a podcast made by Southern Wisconsin Bird Alliance. This is a podcast where we gather questions about nature from kids to be answered with a local expert. My name is Mickenzee; I'm an educator, and I'll be the host for this series. This episode I'll be interviewing Jamie Nack, an Extension Senior Wildlife Outreach Specialist at UW – Madison. Oh, that's a long title. Today she'll be answering questions all about tracks. Okay, let's jump in with Jamie.

-----

Mickenzee: Alright. Hey, Jamie. Welcome to the show. Before we get started with the questions from the kids, could you tell us about what you do here at UW Madison?

Jamie: Sure. So my name is Jamie Nack. My title, I'm an Extension Wildlife Outreach Specialist in the Department of Forest and Wildlife Ecology at UW Madison. Huge, long title, right? But I'll come back to that extension piece. So most folks are familiar with the University of Wisconsin, Madison doing research and also teaching our next professionals, so undergraduate and graduate teaching. And so there's a third branch of work that's done at the university and that is extension work. And that work is basically taking research and our findings and sharing it with people off the UW Madison campus.

Mickenzee: Ohhh!

Jamie: And so for my work, I get to work around the theme of wildlife ecology, and I do a lot of work off campus working with private landowners, working with kids, working with adults and sharing the love of wildlife, helping to answer their problems and helping them to coexist with wildlife and pique their interest, and attracting more wildlife to their properties and their backyards. So that's the extension side. And then I do get to do some formal teaching in the Department of Forest and Wildlife Ecology for our students who are majoring in wildlife.

Mickenzee: Yeah, which happened to be me a couple years ago. So your job is like you're the bridge between the university and the community.

Jamie: Yeah, exactly.

Mickenzee: Very cool! Sounds like a really awesome job but maybe I'm a little biased because I also love teaching. Today's questions are all about tracks. Can you track when you first became interested in wildlife?

Jamie: Oh, that's a great question, way to play into the topic. So for me, I have what was a pretty traditional route, you know, decades ago into this profession, and that is through my time afield, particularly with my father and also just growing up outdoors, out in the country. We lived with the river in our backyard, and I was constantly turning over rocks and, you know, investigating things and looking for animals and paying attention using binoculars. All of those fun things. So I really spent a lot of time outdoors, but my connection with wildlife really came in as my dad started taking me hunting with him. And so it seems kind of odd to think about hunting and love for wildlife in the same sentence. But what hunting did was really put me out in the field and made me a keen observer and not just the animal I was pursuing, but I learned and saw a lot of other wildlife that had me questioning and asking, you know, what do they eat? Where do they sleep? How many young do they have? Just all these crazy questions were popping in my mind. And so through that experience, I really had a lot of questions, but you know, I've gained a strong interest in wildlife ecology. So how wildlife interact with the habitats, with other animals, with people and so on. So then I started to really ask questions about management, you know, how do we manage wildlife and that often took me into visiting with the local department of Natural Resource biologists and seeing what work they were up to. And anyway, long story short, I knew from a pretty early stage I would say oh probably by a junior in high school, that I really wanted to pursue being a wildlife biologist. And the rest is sort of, history, so to speak. So I pursued an undergraduate degree and then a master's degree. And, again, get to kind of combine my love of teaching and wildlife. On a daily basis.

Mickenzee: Awesome! Yeah that spark from childhood really sets your path.

Jamie: It does.

Mickenzee: Yeah I also hunted when I was in middle school with my grandpa and like, being out in nature that early and for that long, you really get to observe stuff that, you know, sometimes just going for a hike doesn't allow you to do.

Jamie: So true, so true.

Mickenzee: Okay our first question is, are there any animals that try to cover their tracks to maybe sneak up on prey or hide from predators?

Rabbit tracks in the snow (photo by Ken Sturm/USFWS)

Jamie: I absolutely love this question because animals are pretty savvy, wildlife you know, they're trying to survive every minute of their life. So they do things pretty intentionally. However, I can't think of any situations where an animal is, you know, capable or smart enough to think to go back and cover, sift out their tracks so they can't be seen. So I can't think of any situations that way, but the question got me thinking about some other ways that animals avoid having a predator follow their tracks. And if we think about cottontail rabbits, they're a pretty common prey species, lots of things like to eat rabbits, anywhere from a fox or a coyote, or maybe an owl or, red tailed hawk. And so a couple things that rabbits do is when they run away, they run in a very zigzag pattern, so they don't run in a straight line, but also, I don't know that rabbits do this necessarily to avoid predation, but more stay in their local habitat that they're familiar with. But they also tend to run in circles. And so they will go out and then circle back on their tracks. And so if you're a fox or a coyote, it might be confusing if they're running back on the same tracks, but I don't know whether rabbits are smart enough to be doing that intentionally, or if it's also a matter of just staying in their home range, the place, the location where they're the most comfortable and they keep circling back to it. But either way, it can certainly be confusing to a predator.

Mickenzee: That’s so interesting. I'll have to watch and notice for that next time I see a rabbit running away.

Jamie: Absolutely.

Mickenzee: Our next question is probably a tricky one to answer, I imagine. How can you tell if small tracks are from a small animal or if they're from a baby animal?

Jamie: Again, a super great question. And there's a couple of things we can think about where we would want to pause and take notice. So you're out there in the woods, you come across maybe a stream and a soft spot in the mud where you see some tracks and they look pretty small. And that's where this question comes from. How do I know if that's a baby animal or an adult animal? You can start kind of working your inner detective and start thinking, well, what time of the year is it? So if this is in the fall, we know that a lot of baby animals are born in the spring, right? So by fall they are probably at least half adult size, maybe more, depending on the individual species. So the timing might really give us a clue if it was in the spring and we saw that little track and we were thinking, oh, maybe that's a baby, it could be because of the timing. So maybe then you want to look around a little bit more, see how long you can follow that track. And as you follow that track, do you see larger tracks with it where you've got an adult? Because typically, not all wildlife but many wildlife species, the young will be nearby for things like raccoons and possums and things like that. But in other situations, like a deer, you might see the fawn track but not see the adult doe. She may be elsewhere right now, and vice versa.

Mickenzee: I think of turtles too, they don’t really have parents taking care of them.

Jamie: Yes! That's right. Great example. Yeah the turtle, the female turtle lays the eggs and then the nest is kind of on its own. She doesn't, you know, defend the nest, protect the nest. But when they hatch, then they hatch in numbers. So yeah that's another, another great question. So after you give some thought to the time of the year and you follow the tracks as long as you can to see if there's maybe adults with it, or it was an adult and there's even tinier tracks.

Mickenzee: That would be a fun surprise!

Jamie: Right? The other things we do then to try to figure out whose track it is, what animal left that track, is to then look at patterns or shapes of that track. We might be looking at the gait, so the overall the hind foot to the front foot, you know, what does that spacing look like. And then we start to look at things like the number of toes. So if you saw that track and you counted the toes and it was something less than 4 or 5, you're probably looking at a deer because deer have two. Deer also have a heart shape to them. And the bottom of the heart is pointing in the direction of travel.

Mickenzee: Yeah!

Coyote track (photo by Ashley Spratt/USFWS)

Jamie: So that's something you can think about and go and check out for yourself next time you're out in the woods. But if you're counting and you're seeing an animal with 4 or 5 toes, if it has four on the front foot and the hind foot, you're looking at either a canid, so a member of the dog family, or a felid, a member of the cat family.

Mickenzee: Oh, okay.

Canada Lynx tracks (photo by Tamara Smith/USFWS)

Jamie: The tricky part is, depending on where you are, and especially if you're in an urban area or a more populated area at County Park River, we've got other dogs and cats besides the wild one, so domestic animals are also going to kind of throw that wrinkle in there that we need to make sure to consider them too. But when you look at those toes, if you see tiny little triangles above the toes, little indents, those are likely claws. And so you will see claws registered in soft sand or mud. And that's an indication of a canid, a member of the dog family, a coyote or a fox, maybe. If you don't see that, then it's more likely that it's a member of the felid family, the cat family, because they have the retractable claws.

Mickenzee: Yes.

Weasel tracks (photo by Ken Sturm/USFWS)

Jamie: And so in that case, you know, in Wisconsin, the bobcat would be the most common felid. We occasionally, but very rarely, have mountain lions roaming through the state, not likely to be in more populated areas, more rural areas. So that's another possibility. And then of course, if you're getting into animals with five toes, then we're starting to look at things like squirrels, members of the weasel family, lots of different options there too.

Mickenzee: And our last question is about tails. So they notice that a lot of animals leave tail drags, especially if you're looking like in the snow. And how do animals not get cold when their tails drag into the snow? Like that muskrat example, it’s got that naked tail.

Jamie: Right? So we can go back to a couple other life history characteristics for wildlife. So we're in Wisconsin, it does get cold, we do get snow, and not all wildlife are adapted to surviving our winters. So there are three different strategies that wildlife take. One would be they migrate, so they leave the area, or they leave the state for somewhere warmer. That is often the case with animals that eat insects, because we don't have insects active in the winter so they have to fly south where they don't have the cold temperatures and they can forage on insects. Another adaptation would be to hibernate like a chipmunk or a ground squirrel. Black bears also have a type of hibernation, we won't get into all the science behind it but they also sleep for periods of the winter as well. So those are two strategies, and then the third strategy is to be adapted or built, to handle that cold. And so you mentioned the muskrat, beavers would be another example, otters, mink, those are all furbearers. So mammals that have fur and are active in the wintertime. Oftentimes they're swimming in open areas of frozen lakes where they can get access in and out or they're tucked away in their beaver lodges and they've got a food stash, or cache, underneath the water. And essentially that fur that they have, some of them have fur on their tail some do not, but fur acts as an insulator. And for those animals I just mentioned, they have two types of fur on their body. They have guard hairs and then they have underfur and the underfur is what keeps them warm. And then the guard hair is what kind of lets that water slide off their back. That, along with oil glands that they use to groom themselves, it puts oil on those guard hairs, and it helps that water just repel right off of their fur. But the tail specifically animals also have adaptations when it is cold that their body can basically shut off the needs of their extremities for staying warm, essentially, and focus that energy on their core organs, their core vitals. And so they can almost like shunt off that access to the tail to be able to survive.

Mickenzee: So their tails aren't as sensitive, maybe.

Jamie: Yeah. Good way to put it. But then in some cases they actually have heavy fur on those tails that keep them warm as well. One interesting note. The possum, the Virginia Opossum right, is a species that is active year-round. Typically we didn't see possum in northern Wisconsin, but it's one of the species we're kind of watching with a warming climate that they may move further north. What we see in possum, though, is they're not super adapted for those cold temperatures and so they often do get frostbite on their ears or on their tails. So it's not uncommon to see a possum with the tip of its ear missing or tip of its tail. And so that's an example of an animal that isn't necessarily suited for our cold winters, but is starting to move its distribution further north with warming weather, so pretty interesting.

Mickenzee: That is really interesting.

Virginia Opossum in the snow (photo by USFWS)

Jamie: But they sometimes get brought in to wildlife rehabilitators to get taken care of if they get an extreme weather event or winter weather.

Mickenzee: Right, right. They also have like naked hands and feet.

Jamie: Yeah.

Mickenzee: Oh man, poor opossums. All right. I feel like I learned so much today outside of just tracks too. We're learning about all kinds of animals. And thank you to the Lincoln third graders for submitting your nature questions. And thanks, Jamie, for teaching us today.

Jamie: You are very welcome. Keep asking questions and seeking answers.

-----

If you are interested in learning more or getting involved with our programs, please head to our website swibirds.org and check out the free lessons, games and activities. Check out things like our rubber tracks and free downloadable urban mammal track and Scat ID. If you have a big nature question that you'd like to have answered, please have a grown up or teacher submit your question to info@swibirds.org with the title ‘Questions for QuACK’. Make sure to include your grade and school you attend so I can give you a shout out.

Thanks for tuning in and I hope you join us next time on QuACK!


Check out SoWBA’s free lessons, games, and activities!⁠

⁠Get out and explore nature with us! 

Make a donation to Southern Wisconsin Bird Alliance

Audio Editing by Mickenzee Okon

Transcription by Juanita Duarte

Logo design by Carolyn Byers and Kaitlin Svabek

Music: “The Forest and the Trees” by Kevin MacLeod