Notes: Large pale tern w. short stout gull-like black bill
& long black legs. Slow steady gull-like flight. Breeding plumage:
full black cap. Non-breeding plumage: black patch around eye & ear-
coverts; whitish head steaked or mottled black, especially on hindcrown &
nape. Larger than similar Gull-billed
Tern which in non-breeding plumage has only a small eye-patch, possibly
connected to a black spot on ear-coverts. Forages on the wing. On coastlines, lakes,
wetlands.