List aves families
Acanthizidae
Striated thornbill
Accipitridae
Montagu's harrier
Acrocephalidae
Oriental reed warbler
Aegithalidae
Long-tailed tit
Aegithinidae
Green iora
Alaudidae
Mongolian short-toed lark, Sykes's short-toed lark
Alcedinidae
Striped kingfisher
Alcidae
Atlantic puffin, common puffin, sea parrot, clown of the sea
Alcippeidae
Brown-cheeked fulvetta, brown-cheeked alcippe
Anatidae
Bar-headed goose
Anhimidae
horned screamer, Aruco Horned Screamer
Anhingidae
anhinga, snakebird, darter, American darter, water turkey
Apodidae
Great dusky swift
Aramidae
limpkin, carrao, courlan, crying bird
Ardeidae
cocoi heron
Artamidae
White-browed woodswallow