António A Gonçalves:
Gelochelidon (Sterna) nilotica - Tagaz/Gull-billed Tern (juv)
António A Gonçalves:
Gelochelidon (Sterna) nilotica - Tagaz/Gull-billed Tern (juv)
António A Gonçalves:
Gelochelidon (Sterna) nilotica - Tagaz/Gull-billed Tern
António A Gonçalves:
Gelochelidon (Sterna) nilotica - Tagaz/Gull-billed Tern
António A Gonçalves:
Gelochelidon (Sterna) nilotica - Tagaz/Gull-billed Tern
António A Gonçalves:
Gelochelidon (Sterna) nilotica - Tagaz/Gull-billed Tern
António A Gonçalves:
Gelochelidon nilotica - Tagaz / Gull-billed Tern
António A Gonçalves:
Hydroprogne caspia - Garajau grande/Caspian Tern
António A Gonçalves:
Sterna caspia - Andorinha do Mar Grande/Caspian Tern
António A Gonçalves:
Cócó, ranheta e facada
António A Gonçalves:
Sterna caspia - Andorinha do Mar Grande/Caspian Tern
António A Gonçalves:
Sterna hirundo - Gaivina/Common Tern
António A Gonçalves:
Sterna hirundo - Andorinha do Mar Comum/Common Tern
António A Gonçalves:
Sterna hirundo - Gaivina/Common Tern (juv)
António A Gonçalves:
Sterna hirundo - Gaivina/Common Tern
António A Gonçalves:
Sterna hirundo - Gaivina/Common Tern (juv)
António A Gonçalves:
Sterna hirundo - Gaivina/Common Tern (juv)
António A Gonçalves:
Sterna hirundo - Gaivina/Common Tern (imat)
António A Gonçalves:
Sterna hirundo - Gaivina/Common Tern
António A Gonçalves:
Sterna paradisaea - Gaivina do Árctico/Arctic Tern
António A Gonçalves:
Sterna paradisaea
António A Gonçalves:
Sterna paradisaea
António A Gonçalves:
Sternula (Sterna) albifrons - Chilreta/Little Tern
António A Gonçalves:
Sternula (Sterna) albifrons - Chilreta/Little Tern
António A Gonçalves:
Sternula (Sterna) albifrons - Chilreta/Little Tern (Juv)
António A Gonçalves:
Sternula (Sterna) albifrons - Chilreta/Little Tern
António A Gonçalves:
Sternula albifrons IBH
António A Gonçalves:
Chlidonias hybrida - Gaivina dos Pauis/Whiskered Tern
António A Gonçalves:
Chlidonias hybrida - Gaivina dos Pauis/Whiskered Tern
António A Gonçalves:
Chlidonias hybrida - Gaivina dos Pauis/Whiskered Tern
