The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
(first | last) View (previous 100 | next 100) (20 | 50 | 100 | 250 | 500)- Alophoixus (9 members)
- Alopochelidon (1 member)
- Alopochen (1 member)
- Amadina (2 members)
- Amalocichla (2 members)
- Amandava (3 members)
- Amaurocichla (0 members)
- Amaurolimnas (1 member)
- Amaurornis (6 members)
- Amaurospiza (3 members)
- Amazilia (5 members)
- Amazilis (1 member)
- Amazona (31 members)
- Amazonetta (1 member)
- Amblycercus (1 member)
- Amblyornis (4 members)
- Amblyospiza (1 member)
- Amblyramphus (1 member)
- Ammodramus (3 members)
- Ammomanes (3 members)
- Ammomanopsis (1 member)
- Ammonastes (1 member)
- Ammoperdix (2 members)
- Ammospiza (4 members)
- Ampeliceps (1 member)
- Ampelioides (1 member)
- Ampelion (2 members)
- Ampelornis (1 member)
- Amphilais (0 members)
- Amphispiza (1 member)
- Amphispizopsis (1 member)
- Amytornis (13 members)
- Anabacerthia (5 members)
- Anabathmis (3 members)
- Anabazenops (2 members)
- Anairetes (5 members)
- Analisoma (3 members)
- Anaplectes (2 members)
- Anarhynchus (24 members)
- Anas (30 members)
- Anastomus (2 members)
- Anatidae (55 members)
- Ancistrops (1 member)
- Andigena (4 members)
- Andorra (1 member)
- Androdon (1 member)
- Andropadus (1 member)
- Androphobus (1 member)
- Anglesey (3 members)
- Angola (0 members)
- Anhima (1 member)
- Anhimidae (2 members)
- Anhinga (4 members)
- Anhingidae (1 member)
- Anisognathus (5 members)
- Anodorhynchus (3 members)
- Anomalospiza (1 member)
- Anopetia (1 member)
- Anorrhinus (3 members)
- Anous (5 members)
- Anser (11 members)
- Anseranas (1 member)
- Anseranatidae (2 members)
- Anseriformes (3 members)
- Antarctica (0 members)
- Anthipes (2 members)
- Anthobaphes (1 member)
- Anthocephala (2 members)
- Anthochaera (5 members)
- Anthocincla (0 members)
- Anthornis (2 members)
- Anthoscopus (6 members)
- Anthracoceros (5 members)
- Anthracothorax (8 members)
- Anthreptes (14 members)
- Anthropoides (2 members)
- Anthus (45 members)
- Antigone (4 members)
- Antilophia (2 members)
- Antrostomus (12 members)
- Anumara (1 member)
- Anumbius (1 member)
- Anurolimnas (1 member)
- Anurophasis (0 members)
- Apalis (24 members)
- Apaloderma (3 members)
- Apalopteron (1 member)
- Aphanapteryx (1 member)
- Aphanotriccus (2 members)
- Aphantochroa (1 member)
- Aphelocephala (3 members)
- Aphelocoma (7 members)
- Aphrastura (2 members)
- Aphriza (0 members)
- Aphrodroma (1 member)
- Aplonis (24 members)
- Apodidae (19 members)
- Apodiformes (0 members)
- Aprositornis (1 member)
- Aprosmictus (2 members)