Credits

The entries for the Velvet Scoter, White-tailed Tropicbird, Common Loon, Wilson's Storm-petrel, Swinhoe's Storm-petrel, Little Gull, Slender-billed Gull, Ring-billed Gull, Greater Flamingo and Great Black-backed Gull, together with the maps showing occurrence, density and presence, as well as the graphs showing the occurrence frequencies of all species downloaded from the Atlas of Seabirds of Portugal digital tool, should be cited as:

Meirinho A, Barros N , Oliveira N , Catry P, Lecoq M, Paiva V, Geraldes P, Granadeiro JP, Ramírez I & Andrade J (2014). Atlas das Aves Marinhas de Portugal. Sociedade Portuguesa para o Estudo das Aves. https://www.atlasavesmarinhas.pt

The entries on the remaining species, the distribution and colonies maps, and the graphs on the environmental status assessment downloaded from the Atlas of Seabirds of Portugal digital tool should be cited as follows:

Oliveira N, Nascimento T, Paiva VH, Alonso H, Costa M, Dias MP, Ramos JA, Lacerda I, de la Cruz A, Gouveia C, Campioni L, Almeida A, Pipa T, Pereira J & Andrade J (2026). Sentinels of the Ocean - Distribution and environmental status of seabirds and coastal waders of Portugal. Sociedade Portuguesa para o Estudo das Aves - SPEA BirdLife, CE3C, Estación Biológica de Doñana (EBD-CSIC), Lisbon. https://www.atlasavesmarinhas.pt

Illustrations: Martí Franch

Translation: Elena Fernandez Cano

Webdesign: we are boq (Guilherme Cartaxo, Miguel Duarte)