Aalscholver (Dutch)
Aasgier (Dutch)
Alk (Dutch)
Alpengierzwaluw (Dutch)
Alpenheggemus (Dutch)
Alpenkauw (Dutch)
Alpenkraai (Dutch)
Alpensneeuwhoen (Dutch)
Appelvink (Dutch)
Arendbuizerd (Dutch)
Audouins Meeuw (Dutch)
Auerhoen (Dutch)
Aziatische Steenpatrijs (Dutch)
Azuurmees (Dutch)
Alpine Accentor (English)
Alpine Chough (English)
Alpine Swift (English)
Aquatic Warbler (English)
Arctic Redpoll (English)
Arctic Skua (English)
Arctic Tern (English)
Arctic Warbler (English)
Atlantic Puffin (English)
Audouin's Gull (English)
Avocet (English)
Azure Tit (English)
Azure-winged Magpie (English)
Accenteur alpin (French)
Aigle botté (French)
Aigle criard (French)
Aigle de Bonelli (French)
Aigle des steppes (French)
Aigle impérial (French)
Aigle impérial ibérique (French)
Aigle pomarin (French)
Aigle royal (French)
Aigrette garzette (French)
Alouette calandra (French)
Alouette calandrelle (French)
Alouette des champs (French)
Alouette leucoptère (French)
Alouette lulu (French)
Alouette nègre (French)
Alouette pispolette (French)
Astrild ondulé (French)
Autour des palombes (French)
Avocette (French)
Aaskrähe (German)
Adlerbussard (German)
Alpenbraunelle (German)
Alpendohle (German)
Alpenkrähe (German)
Alpenschneehuhn (German)
Alpensegler (German)
Alpenstrandläufer (German)
Amsel (German)
Andalusian Hemipode (German)
Auerhuhn (German)
Austernfischer (German)
Accenteur mouchet (Italian)
Airone bianco maggiore (Italian)
Airone guardabuoi (Italian)
Airone rosso (Italian)
Albanella minore (Italian)
Albanella pallida (Italian)
Albanella reale (Italian)
Albastrello (Italian)
Allocco (Italian)
Allocco degli Urali (Italian)
Allocco di Lapponia (Italian)
Allodola (Italian)
Allodola del Dupont (Italian)
Alondra cornuda (Italian)
Alzarola (Italian)
Alzavola (Italian)
Anatra marmorizzata (Italian)
Aquila anatraia maggiore (Italian)
Aquila anatraia minore (Italian)
Aquila del Bonelli (Italian)
Aquila delle steppe (Italian)
Aquila di mare (Italian)
Aquila imperiale (Italian)
Aquila imperiale occidentale (Italian)
Aquila minore (Italian)
Aquila reale (Italian)
Arao común (Italian)
Assiolo (Italian)
Astore (Italian)
Astrilda comune (Italian)
Avefría espolonoda (Italian)
Averla capirossa (Italian)
Averla cenerina (Italian)
Averla maggiore (Italian)
Averla mascherata (Italian)
Averla meridionale (Italian)
Averla piccola (Italian)
Avíon zapador (Italian)
Avocetta (Italian)
Avvoltoio monaco (Italian)
Abejaruco común (Spanish)
Abubilla (Spanish)
Acentor alpino (Spanish)
Agachadiza chica (Spanish)
Agachadiza común (Spanish)
Agachadiza real (Spanish)
Agateador común (Spanish)
Agateador norteño (Spanish)
Agrobate roux (Spanish)
Aguila calzada (Spanish)
Aguila culebrera (Spanish)
Aguila imperial (Spanish)
Aguila imperial iberica (Spanish)
Aguila moteada (Spanish)
Aguila nipalense (Spanish)
Aguila perdicera (Spanish)
Aguila pescadora (Spanish)
Aguila pomerana (Spanish)
Aguila real (Spanish)
Aguilucho cenizo (Spanish)
Aguilucho lagunero (Spanish)
Aguilucho pálido (Spanish)
Aguilucho papialbo (Spanish)
Aguja colinegra (Spanish)
Aguja colipinta (Spanish)
Alca común (Spanish)
Alcaraván (Spanish)
Alcatraz (Spanish)
Alcaudón chico (Spanish)
Alcaudón común (Spanish)
Alcaudón dorsirrojo (Spanish)
Alcaudón enmascarado (Spanish)
Alcaudón meridional (Spanish)
Alcaudón real (Spanish)
Alcotán (Spanish)
Alimoche común (Spanish)
Alondra común (Spanish)
Alondra de Dupont (Spanish)
Alouette hausse-col (Spanish)
Ampelis europeo (Spanish)
Anade friso (Spanish)
Anade rabudo (Spanish)
Anade real (Spanish)
Anade silbon (Spanish)
Andarríos bastardo (Spanish)
Andarríos chico (Spanish)
Andarríos de Terek (Spanish)
Andarríos grande (Spanish)
Ansar campestre (Spanish)
Ansar careto chico (Spanish)
Ansar careto grande (Spanish)
Ansar común (Spanish)
Ansar piquicorto (Spanish)
Arao aliblanco (Spanish)
Arao de Brünnich (Spanish)
Archibebe claro (Spanish)
Archibebe común (Spanish)
Archibebe fino (Spanish)
Archibebe oscuro (Spanish)
Arrendajo (Spanish)
Arrendajo funesto (Spanish)
Astrilda común (Spanish)
Autillo (Spanish)
Avefría (Spanish)
Avetorillo común (Spanish)
Avetoro común (Spanish)
Avíon común (Spanish)
Avíon roquero (Spanish)
Avoceta (Spanish)
Avutarda (Spanish)
Azor (Spanish)