Andean Gull vs Greater Crested Tern
Larus serranus ile kıyaslandığında Thalasseus bergii
Side-by-Side Comparison
| Özellik | Andean Gull | Greater Crested Tern |
|---|---|---|
| Bilimsel Ad | Larus serranus | Thalasseus bergii |
| Takım | Charadriiformes | Charadriiformes |
| Familya | Laridae | Laridae |
| Koruma Durumu | Least Concern | Least Concern |
| Uzunluk | — | — |
| Kanat Açıklığı | 70,6 cm (27.8 in) | 71,6 cm (28.2 in) |
| Ağırlık | 478,0 g (16.86 oz) | 367,75 g (12.97 oz) |
| Beslenme | -- | -- |
| Kuluçka Büyüklüğü | 1-4 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
Ortak Yaşam Alanları
Andean Gull only
Hiçbiri
Greater Crested Tern only
Hiçbiri
Koruma Durumu
Least Concern
Andean Gull
Least Concern
Greater Crested Tern
About These Birds
Andean Gull
Andean Gull, 45–48 cm, breeds at high-altitude Andean lakes from Colombia to Argentina, typically above 3000 m. Black hood in breeding plumage; white below with grey mantle. Largely insectivore, following cattle or foraging at lake edges. Partial altitudinal migrant descending to Pacific and Atlantic coasts in winter.
Greater Crested Tern
Greater Crested Tern, 43–48 cm, is the largest crested tern of the Indo-Pacific, breeding from South Africa to Japan and Australia. Yellow-green bill, prominent black crest, grey back. Colonial breeder on sand islands; plunge-dives for fish. Partially migratory; disperses across Indian and Pacific Oceans.