birdnote.org

4Xy56 TIL Seagulls (and some other birds) stand on one leg as it reduces body heat lost by non-feathered parts of their body by 50%.
jNVAv TIL that a single Canada Goose has between 20 and 25 thousand feathers. Just a fraction of an inch of this feather insulation can keep a bird's body temperature at 104 degrees, even in freezing weather.
xVXZ1 TIL - Falcons are more closely related to parrots than hawks or eagles