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Rights
- No Copyright - United States 92
Format
- image/tiff 92
Taxon Class
- Aves 92
Order
- Charadriiformes 92
- Pelecaniformes 4
Family
- Laridae 86
- Haematopodidae 6
- Pelecanidae 4
Genus
- Larus 43
- Thalasseus 18
- Xema 14
- Rynchops 8
- Haematopus 6
- Pelecanus 4
- Leucophaeus 3
Decade
- 1920-1929 92