Vilniaus universiteto Ekologijos institutas. – Vilnius : Vilniaus universiteto Ekologijos institutas. Mečislovas Žalakevičius, Irena Žalakevičienė. 2009.
Andean Gull — Conservation status Least Concern (IUCN 3.1 … Wikipedia
Gull — Taxobox name = Gulls image width = 250px image caption = Black headed Gull regnum = Animalia phylum = Chordata classis = Aves ordo = Charadriiformes subordo = Lari familia = Laridae familia authority = Vigors, 1825 subdivision ranks = Genera… … Wikipedia
Black-headed Gull — Typical summer plumage displaying the dark head , Antwerp, Belgium Conservation status … Wikipedia
Mediterranean Gull — Conservation status … Wikipedia
Common Gull — For the butterfly, see Cepora nerissa. Common Gull Adult Mew Gull. Anchorage Coastal Wildlife Refuge, Alaska. Conservation status … Wikipedia
Bonaparte's Gull — Adult breeding Adult non breeding … Wikipedia
Ivory Gull — Conservation status Near Threatened (I … Wikipedia
Red-billed Gull — Adult Conservation status … Wikipedia
Grey-headed Gull — Breeding adult, Senegal Conservation status … Wikipedia
Silver Gull — Adult Conservation status … Wikipedia
