Great Black-backed Gull vs Aleutian Tern
Larus marinus से तुलना Onychoprion aleuticus
Side-by-Side Comparison
| विशेषता | Great Black-backed Gull | Aleutian Tern |
|---|---|---|
| वैज्ञानिक नाम | Larus marinus | Onychoprion aleuticus |
| गण | Charadriiformes | Charadriiformes |
| कुल | Laridae | Laridae |
| संरक्षण स्थिति | Least Concern | Vulnerable |
| लंबाई | — | — |
| पंखों का फैलाव | 95.6 cm (37.6 in) | 52.4 cm (20.6 in) |
| वजन | 1678.3333333333333 g (59.20 oz) | 104.88 g (3.70 oz) |
| आहार | -- | -- |
| अंडों की संख्या | 1-3 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
साझा आवास
Great Black-backed Gull only
कोई नहीं
Aleutian Tern only
कोई नहीं
संरक्षण स्थिति
Least Concern
Great Black-backed Gull
Vulnerable
Aleutian Tern
About These Birds
Great Black-backed Gull
Great Black-backed Gull, 61–74 cm, wingspan 142–168 cm, is the world's largest gull, breeding along North Atlantic coasts. Jet-black mantle, white body, massive yellow bill. Dominant predator among seabirds; preys on seabird chicks, puffins, rabbits, as well as scavenging. 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.