Dolphin Gull vs Aleutian Tern
Larus scoresbii в сравнении с Onychoprion aleuticus
Side-by-Side Comparison
| Характеристика | Dolphin Gull | Aleutian Tern |
|---|---|---|
| Научное название | Larus scoresbii | Onychoprion aleuticus |
| Отряд | Charadriiformes | Charadriiformes |
| Семейство | Laridae | Laridae |
| Охранный статус | Least Concern | Vulnerable |
| Длина | — | — |
| Размах крыльев | 64,6 cm (25.4 in) | 52,4 cm (20.6 in) |
| Масса | 519,0 g (18.31 oz) | 104,88 g (3.70 oz) |
| Питание | -- | -- |
| Размер кладки | 2-3 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Охранный статус
Least Concern
Dolphin Gull
Vulnerable
Aleutian Tern
About These Birds
Dolphin Gull
Dolphin Gull, 42–45 cm, is restricted to the coasts of southern South America, the Falkland Islands, and Tierra del Fuego. Adults have a blood-red bill and legs; plumage varies from grey to brownish with age. Scavenges on marine mammal placentas, carrion, and penguin colonies. Resident.
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.