Bonaparte's Gull vs Aleutian Tern
Larus philadelphia से तुलना Onychoprion aleuticus
Side-by-Side Comparison
| विशेषता | Bonaparte's Gull | Aleutian Tern |
|---|---|---|
| वैज्ञानिक नाम | Larus philadelphia | Onychoprion aleuticus |
| गण | Charadriiformes | Charadriiformes |
| कुल | Laridae | Laridae |
| संरक्षण स्थिति | Least Concern | Vulnerable |
| लंबाई | — | — |
| पंखों का फैलाव | 51.9 cm (20.4 in) | 52.4 cm (20.6 in) |
| वजन | 204.575 g (7.22 oz) | 104.88 g (3.70 oz) |
| आहार | -- | -- |
| अंडों की संख्या | 1-3 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
साझा आवास
Bonaparte's Gull only
कोई नहीं
Aleutian Tern only
कोई नहीं
संरक्षण स्थिति
Least Concern
Bonaparte's Gull
Vulnerable
Aleutian Tern
About These Birds
Bonaparte's Gull
Bonaparte's Gull, 28–30 cm, is North America's smallest Larus gull, breeding in boreal forests near lakes and wintering on both coasts. Breeding adult has a black hood; underwing shows white triangular flash. Planktivore and piscivore; buoyant, tern-like flight. Migratory; forms large winter flocks.
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.