The bird’s flight is strong and ... The wings and tail are a vivid blue, with fine black barring. The head, including the crest; back; and throat are blackish. Juveniles are washed with brownish ...

Thus, the bird's brain was thought to be nearly all instinct driven. The dark and light blue regions seen on the model constitute the brainstem, which sit toward the back of a bird's neck and ...

The bill is thin and pale gray. Breeding male: blue-gray above, including most of head and back. Crown has a black line at the forecrown that extends along the sides of crown; white eye ring ...