Impaling a shrew on a thorn, the Northern Shrike affirms its nickname as the "butcher watchman."
Pine Siskin
Northern Saw-whet Owl
“At night in the fall there are probably these little owls about the size of a soda can that weigh as much as a robin flying over [your] house and we're completely oblivious to it.” Scott Weidensaul in an interview with Terry Gross for Fresh Air, Oct. 20 2015. You can find the whole fascinating interview here.