black bill with bluish base
yellow cere
large, long yellow gape

white remiges on underwing
with gray edge
black tips on primaries
(color and amount of barring on coverts varies greatly)

feathered legs
(color varies)

light phase

Photo courtesy
Cascades Raptor Center

dark phase

(photo needed)

There is a great deal of individual variation
in the plumage of light morphs. Some authors identify two intermediate morphs.

Raptor ID Home