Ivory-billed or pileated woodpecker?
Sibley
David A
DA
Bevier
Louis R
LR
Patten
Michael A
MA
Elphick
Chris S
CS
D000818:Animals; D001131:Arkansas; D001717:Birds / Q000033:anatomy & histology / Q000502:physiology; D005426:Flight, Animal; D010858:Pigmentation; D014921:Wings, Animal / Q000033:anatomy & histology / Q000502:physiology