The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
(first | last) View (previous 500 | next 500) (20 | 50 | 100 | 250 | 500)- Central (37 members)
- Central African Republic (0 members)
- Central America (7 members)
- Central India (3 members)
- Centrocercus (3 members)
- Centronyx (2 members)
- Centropodidae (0 members)
- Centropus (27 members)
- Cephalopterus (3 members)
- Cephalopyrus (1 member)
- Cepphus (3 members)
- Cerasophila (0 members)
- Ceratogymna (2 members)
- Ceratopipra (5 members)
- Cercibis (0 members)
- Cercococcyx (3 members)
- Cercomacra (7 members)
- Cercomacroides (6 members)
- Cercomela (0 members)
- Cercotrichas (10 members)
- Cereopsis (1 member)
- Cerorhinca (1 member)
- Certhia (9 members)
- Certhiasomus (1 member)
- Certhiaxis (2 members)
- Certhidea (2 members)
- Certhiidae (2 members)
- Certhilauda (6 members)
- Certhionyx (1 member)
- Ceryle (1 member)
- Cettia (4 members)
- Cettiidae (0 members)
- Ceuthmochares (2 members)
- Ceyx (22 members)
- Chad (0 members)
- Chaetocercus (6 members)
- Chaetopidae (1 member)
- Chaetops (2 members)
- Chaetoptila (1 member)
- Chaetorhynchus (1 member)
- Chaetornis (0 members)
- Chaetura (11 members)
- Chaimarrornis (0 members)
- Chalcites (0 members)
- Chalcomitra (7 members)
- Chalcoparia (1 member)
- Chalcophaps (3 members)
- Chalcopsitta (3 members)
- Chalcostigma (5 members)
- Chalcothraupis (1 member)
- Chalybura (2 members)
- Chamaea (1 member)
- Chamaepetes (2 members)
- Chamaetylas (4 members)
- Chamaeza (6 members)
- Channel Islands (4 members)
- Charadriidae (11 members)
- Charadriiformes (21 members)
- Charadrius (11 members)
- Charitospiza (1 member)
- Charminetta (1 member)
- Charmosyna (2 members)
- Charmosynoides (1 member)
- Charmosynopsis (2 members)
- Chasiempis (3 members)
- Chauna (2 members)
- Chaunoproctus (0 members)
- Chelictinia (1 member)
- Chelidoptera (1 member)
- Chelidorhynx (1 member)
- Chen (0 members)
- Chenonetta (1 member)
- Chenorhamphus (2 members)
- Cheramoeca (1 member)
- Chersomanes (1 member)
- Chersophilus (1 member)
- Cheshire (9 members)
- Chilades (1 member)
- Chile (6 members)
- Chilia (1 member)
- China (5 members)
- Chionidae (1 member)
- Chionididae (0 members)
- Chionis (2 members)
- Chionomesa (2 members)
- Chiroxiphia (5 members)
- Chlamydera (5 members)
- Chlamydochaera (1 member)
- Chlamydotis (2 members)
- Chleuasicus (1 member)
- Chlidonias (4 members)
- Chloebia (1 member)
- Chloephaga (5 members)
- Chlorestes (5 members)
- Chloridops (1 member)
- Chloris (5 members)
- Chloroceryle (4 members)
- Chlorocharis (0 members)
- Chlorochrysa (3 members)
- Chlorocichla (5 members)
- Chlorodrepanis (3 members)
- Chloropeta (0 members)
- Chlorophanes (1 member)
- Chlorophoneus (6 members)
- Chlorophonia (8 members)
- Chloropicus (3 members)
- Chloropipo (2 members)
- Chloropseidae (1 member)
- Chloropsis (11 members)
- Chlorornis (1 member)
- Chlorospingus (8 members)
- Chlorostilbon (10 members)
- Chlorothraupis (3 members)
- Cholornis (2 members)
- Chondestes (1 member)
- Chondrohierax (2 members)
- Chordeiles (6 members)
- Chroicocephalus (10 members)
- Chrysococcyx (13 members)
- Chrysocolaptes (8 members)
- Chrysocorythus (1 member)
- Chrysolampis (1 member)
- Chrysolophus (2 members)
- Chrysominla (1 member)
- Chrysomma (3 members)
- Chrysomus (2 members)
- Chrysophlegma (3 members)
- Chrysoptilus (0 members)
- Chrysothlypis (2 members)
- Chrysuronia (9 members)
- Chunga (1 member)
- Ciccaba (1 member)
- Cichladusa (3 members)
- Cichlherminia (1 member)
- Cichlocolaptes (2 members)
- Cichlopsis (1 member)
- Cicinnurus (1 member)
- Ciconia (8 members)
- Ciconiidae (6 members)
- Ciconiiformes (1 member)
- Cinclidae (1 member)
- Cinclidium (3 members)
- Cinclocerthia (2 members)
- Cinclodes (15 members)
- Cincloramphus (12 members)
- Cinclosoma (8 members)
- Cinclosomatidae (2 members)
- Cinclus (5 members)
- Cinnycerthia (4 members)
- Cinnyricinclus (1 member)
- Cinnyris (59 members)
- Circaetus (6 members)
- Circus (16 members)
- Ciridops (1 member)
- Cissa (4 members)
- Cissilopha (0 members)
- Cissomela (1 member)
- Cissopis (1 member)
- Cisticola (51 members)
- Cisticolidae (27 members)
- Cistothorus (5 members)
- Citation needed (9 members)
- Cittura (2 members)
- Cladorhynchus (1 member)
- Clamator (4 members)
- Clanga (3 members)
- Clangula (1 member)
- Claravis (3 members)
- Cleanup (0 members)
- Cleptornis (1 member)
- Cleveland (3 members)
- Clibanornis (5 members)
- Climacteridae (2 members)
- Climacteris (5 members)
- Clypicterus (0 members)
- Clytoceyx (1 member)
- Clytoctantes (2 members)
- Clytolaema (0 members)
- Clytomyias (1 member)
- Clytorhynchus (5 members)
- Clytospiza (1 member)
- Cnemarchus (2 members)
- Cnemathraupis (2 members)
- Cnemophilidae (2 members)
- Cnemophilus (2 members)
- Cnemoscopus (1 member)
- Cnemotriccus (1 member)
- Cnipodectes (2 members)
- Coccopygia (3 members)
- Coccothraustes (1 member)
- Coccycolius (0 members)
- Coccycua (3 members)
- Coccyzus (13 members)
- Cochlearius (1 member)
- Cochoa (4 members)
- Coeligena (15 members)
- Coenocorypha (6 members)
- Coereba (1 member)
- Coerebidae (0 members)
- Colaptes (13 members)
- Colibri (5 members)
- Coliidae (2 members)
- Coliiformes (1 member)
- Colinus (3 members)
- Colius (4 members)
- Collocalia (11 members)
- Colluricincla (11 members)
- Coloeus (2 members)
- Colombia (2 members)
- Colonia (1 member)
- Colorado (3 members)
- Colorhamphus (1 member)
- Colotis (1 member)
- Columba (35 members)
- Columbidae (49 members)
- Columbiformes (2 members)
- Columbina (9 members)
- Comoros (2 members)
- Compact Spotting Scopes (12 members)
- Compsospiza (0 members)
- Compsothraupis (1 member)
- Conioptilon (1 member)
- Conirostrum (11 members)
- Connecticut (4 members)
- Conopias (4 members)
- Conopophaga (10 members)
- Conopophagidae (2 members)
- Conopophila (3 members)
- Conostoma (1 member)
- Conothraupis (2 members)
- Contopus (16 members)
- Conuropsis (1 member)
- Cook Islands (0 members)
- Copsychus (12 members)
- Copyright problems (0 members)
- Coracias (9 members)
- Coraciidae (2 members)
- Coraciiformes (6 members)
- Coracina (27 members)
- Coracopsis (3 members)
- Coracornis (2 members)
- Coragyps (1 member)
- Corapipo (3 members)
- Corcoracidae (2 members)
- Corcorax (1 member)
- Cormobates (2 members)
- Cornwall (5 members)
- Corsica (6 members)
- Corthylio (1 member)
- Corvidae (31 members)
- Corvinella (0 members)
- Corvultur (2 members)
- Corvus (46 members)
- Corydon (1 member)
- Coryphaspiza (1 member)
- Coryphistera (1 member)
- Coryphospingus (2 members)
- Corythaeola (1 member)
- Corythaixoides (0 members)
- Corythopis (2 members)
- Corythornis (4 members)
- Coscoroba (1 member)
- Cosmopsarus (1 member)
- Cossypha (13 members)
- Cossyphicula (1 member)
- Costa Rica (10 members)
- Cotinga (7 members)
- Cotingidae (26 members)
- Coturnicops (3 members)
- Coturnix (6 members)
- Coua (10 members)
- Cracidae (11 members)
- Cracticidae (0 members)
- Cracticus (7 members)
- Cranioleuca (20 members)
- Crateroscelis (3 members)
- Crax (7 members)
- Creagrus (1 member)
- Creatophora (1 member)
- Crecopsis (1 member)
- Crete (3 members)
- Creurgops (2 members)
- Crex (2 members)
- Crinifer (5 members)
- Criniger (5 members)
- Crithagra (37 members)
- Croatia (3 members)
- Crocias (0 members)
- Crossleyia (1 member)
- Crossoptilon (4 members)
- Crotophaga (3 members)
- Crotophagidae (0 members)
- Crypsirina (2 members)
- Cryptillas (1 member)
- Cryptoleucopteryx (1 member)
- Cryptopezus (1 member)
- Cryptophaps (1 member)
- Cryptopipo (2 members)
- Cryptospiza (4 members)
- Cryptosylvicola (1 member)
- Crypturellus (21 members)
- Cuba (4 members)
- Cuculidae (42 members)
- Cuculiformes (3 members)
- Cuculus (11 members)
- Culicicapa (2 members)
- Culicivora (1 member)
- Cumbria (7 members)
- Curaeus (1 member)
- Curruca (26 members)
- Cursorius (5 members)
- Cutia (2 members)
- Cyanerpes (4 members)
- Cyanicterus (1 member)
- Cyanistes (3 members)
- Cyanochen (1 member)
- Cyanocitta (2 members)
- Cyanocompsa (1 member)
- Cyanocorax (16 members)
- Cyanoderma (12 members)
- Cyanograucalus (1 member)
- Cyanolanius (2 members)
- Cyanolimnas (0 members)
- Cyanoliseus (1 member)
- Cyanoloxia (4 members)
- Cyanolyca (9 members)
- Cyanomitra (7 members)
- Cyanophaia (0 members)
- Cyanopica (2 members)
- Cyanopsitta (1 member)
- Cyanoptila (2 members)
- Cyanoramphus (10 members)
- Cyclarhis (2 members)
- Cyclopsitta (2 members)
- Cygnus (6 members)
- Cymbilaimus (2 members)
- Cymbirhynchus (1 member)
- Cynanthus (6 members)
- Cyornis (31 members)
- Cyphorhinus (3 members)
- Cyprus (9 members)
- Cypseloides (8 members)
- Cypsiurus (3 members)
- Cypsnagra (1 member)
- Cyrtonyx (2 members)
- Czech Republic (5 members)
- Dacelo (4 members)
- Dacnis (9 members)
- Dactylortyx (1 member)
- Damophila (0 members)
- Danaus (2 members)
- Daphoenositta (3 members)
- Daption (1 member)
- Daptrius (1 member)
- Dasycrotapha (3 members)
- Dasylophus (2 members)
- Dasyornis (3 members)
- Dasyornithidae (1 member)
- Deconychura (1 member)
- Dee Estuary (7 members)
- Delacourella (1 member)
- Delaware (1 member)
- Deleornis (2 members)
- Delete (0 members)
- Delias (1 member)
- Delichon (3 members)
- Delothraupis (0 members)
- Deltarhynchus (0 members)
- Democratic Republic of the Congo (1 member)
- Dendragapus (2 members)
- Dendrexetastes (1 member)
- Dendrocincla (6 members)
- Dendrocitta (7 members)
- Dendrocolaptes (5 members)
- Dendrocolaptidae (0 members)
- Dendrocopos (12 members)
- Dendrocoptes (3 members)
- Dendrocygna (8 members)
- Dendroica (0 members)
- Dendroma (2 members)
- Dendronanthus (1 member)
- Dendroperdix (0 members)
- Dendropicos (12 members)
- Dendroplex (2 members)
- Dendrortyx (3 members)
- Denmark (10 members)
- Derbyshire (3 members)
- Deroptyus (1 member)
- Devon (6 members)
- Dicaeidae (2 members)
- Dicaeum (41 members)
- Dichrozona (1 member)
- Dicruridae (1 member)
- Dicrurus (29 members)
- Didunculus (1 member)
- Digiscoping Equipment (5 members)
- Diglossa (18 members)
- Diglossopis (0 members)
- Dinemellia (1 member)
- Dinopium (6 members)
- Diomedea (6 members)
- Diomedeidae (4 members)
- Diopsittaca (1 member)
- Dioptrornis (0 members)
- Diphyllodes (2 members)
- Disambiguation pages (482 members)
- Discosura (5 members)
- Diuca (1 member)
- Dives (3 members)
- Dixiphia (0 members)
- Djibouti (0 members)
- Dolichonyx (1 member)
- Doliornis (2 members)
- Dolospingus (0 members)
- Dominican Republic (1 member)
- Donacobiidae (1 member)
- Donacobius (1 member)
- Donacospiza (1 member)
- Doricha (2 members)
- Dorset (5 members)
- Doryfera (2 members)
- Dragonflies (1 member)
- Drepanididae (21 members)
- Drepanis (3 members)
- Drepanoptila (1 member)
- Drepanorhynchus (1 member)
- Drepanornis (2 members)
- Dreptes (1 member)
- Dromadidae (1 member)
- Dromaeocercus (0 members)
- Dromaiidae (0 members)
- Dromaius (1 member)
- Dromas (1 member)
- Dromococcyx (2 members)
- Drymocichla (1 member)
- Drymodes (3 members)
- Drymophila (11 members)
- Drymornis (1 member)
- Drymotoxeres (1 member)
- Dryobates (11 members)
- Dryocopus (6 members)
- Dryolimnas (1 member)
- Dryonastes (10 members)
- Dryoscopus (6 members)
- Dryotriorchis (1 member)
- Dubusia (2 members)
- Ducula (43 members)
- Dulidae (1 member)
- Dulus (1 member)
- Dumetella (1 member)
- Dumetia (2 members)
- Dupetor (1 member)
- Durham (5 members)
- Dyaphorophyia (0 members)
- Dysithamnus (9 members)
- Dysmorodrepanis (1 member)
- Eclectus (1 member)
- Ectopistes (1 member)
- Ecuador (13 members)
- Edolisoma (14 members)
- Egretta (12 members)
- Egypt (8 members)
- El Salvador (0 members)
- Elachura (1 member)
- Elachuridae (1 member)
- Elaenia (21 members)
- Elanoides (1 member)
- Elanus (4 members)
- Elaphrornis (1 member)
- Electron (2 members)
- Eleoscytalopus (2 members)
- Eleothreptus (2 members)
- Elliotomyia (2 members)
- Elminia (5 members)
- Elseyornis (0 members)
- Elvira (0 members)
- Emarginata (3 members)
- Emberiza (45 members)
- Emberizidae (1 member)
- Emberizoides (3 members)
- Embernagra (2 members)
- Emblema (1 member)
- Eminia (1 member)
- Empidonax (15 members)
- Empidonomus (2 members)
- Empidornis (1 member)
- England (41 members)
- Enicognathus (2 members)
- Enicurus (8 members)
- Enodes (1 member)
- Ensifera (1 member)
- Entomodestes (2 members)
- Entomyzon (1 member)
- Eolophus (1 member)
- Eophona (2 members)
- Eopsaltria (4 members)
- Eos (6 members)
- Ephippiorhynchus (2 members)
- Epimachus (4 members)
- Epinecrophylla (10 members)