Leucophaeus atricilla
Laughing Gull
Leucophaeus pipixcan
Franklin's Gull
Taxonomic hierarchy
- Casuariiformes
- Anseriformes
- Galliformes
- Phoenicopteriformes
- Podicipediformes
- Cuculiformes
- Columbiformes
- Gruiformes
- Charadriiformes
- Gaviiformes
- Sphenisciformes
- Procellariiformes
- Ciconiiformes
- Suliformes
- Pelecaniformes
- Caprimulgiformes
- Podargidae
- Apodiformes
- Strigiformes
- Cathartiformes
- Accipitriformes
- Bucerotiformes
- Coraciiformes
- Piciformes
- Falconiformes
- Psittaciformes
- Passeriformes
- Tyrannidae
- Menuridae
- Climacteridae
- Ptilonorhynchidae
- Maluridae
- Pardalotidae
- Acanthizidae
- Meliphagidae
- Pomatostomidae
- Campephagidae
- Artamidae
- Psophodidae
- Vireonidae
- Oriolidae
- Pachycephalidae
- Rhipiduridae
- Monarchidae
- Laniidae
- Corvidae
- Notiomystidae
- Callaeidae
- Petroicidae
- Paridae
- Alaudidae
- Cisticolidae
- Hirundinidae
- Aegithalidae
- Phylloscopidae
- Pycnonotidae
- Sylviidae
- Zosteropidae
- Bombycillidae
- Ptiliogonatidae
- Regulidae
- Sittidae
- Certhiidae
- Polioptilidae
- Troglodytidae
- Mimidae
- Sturnidae
- Turdidae
- Muscicapidae
- Estrildidae
- Prunellidae
- Passeridae
- Motacillidae
- Fringillidae
- Emberizidae
- Passerellidae
- Icteridae
- Parulidae
- Cardinalidae
- Thraupidae