Black-bellied and Fulvous Whistling-ducks are found in the southern United States. Both species were formerly known as “tree ducks” since they often roost in trees.
Photo by Andy Reago & Chrissy McClarren
Chimney Swifts: the experts of movement
What draws most people’s attention to Chimney Swifts in the fall is their incredible roosting behavior. Chimney Swifts spend 90% of their lives flying—only pausing their lives on-the-wing to roost and to nest. They eat, sleep, mate, and bathe while flying. In migration, flocks of Chimney Swifts roost in—you guessed it—chimneys, clinging with their feet to the walls while they sleep.
Photo by Steve Benoit FCC
