Caspian Gull vs Aleutian Tern
Larus cachinnans в сравнении с Onychoprion aleuticus
Side-by-Side Comparison
| Характеристика | Caspian Gull | Aleutian Tern |
|---|---|---|
| Научное название | Larus cachinnans | Onychoprion aleuticus |
| Отряд | Charadriiformes | Charadriiformes |
| Семейство | Laridae | Laridae |
| Охранный статус | Least Concern | Vulnerable |
| Длина | — | — |
| Размах крыльев | 85,4 cm (33.6 in) | 52,4 cm (20.6 in) |
| Масса | 1090,0 g (38.45 oz) | 104,88 g (3.70 oz) |
| Питание | -- | -- |
| Размер кладки | 1-4 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Охранный статус
Least Concern
Caspian Gull
Vulnerable
Aleutian Tern
About These Birds
Caspian Gull
Caspian Gull, 56–68 cm, breeds around the Black Sea and Caspian Sea, wintering to the Middle East and East Africa. Long parallel-sided bill, rounded head, pale eye with yellowish orbital ring, pinkish legs. Omnivore; scavenges at landfills and forages in agricultural fields. Partially migratory.
Aleutian Tern
Aleutian Tern, 32–34 cm, breeds colonially in Alaska and Russian Far East, wintering in Southeast Asian waters — one of the most poorly tracked migrations among seabirds. Dark grey above, white below, black cap with white forehead. Piscivore; dives for small fish. Near Threatened.