red head

gray very wrinkled
featherless heads

reddish tarsi (lower leg)

gray toes (appear white
from excrement)

uniformly light gray remiges on underside of wings

outer primaries have whitish area on each feather
more visible on lower surface

yellowish white bill
see-through nares

narrow bill
yellowish brown on tip

longer tail that extends well beyond feet in flight

short square black tail
toes extend to tail in flight

grayish head
pinkish around nares

smooth black head

black tip on white bill
see-through nares

blackish bill with black tip
(tip turning yellow as ages)