Brown-headed Gull vs River Tern
Larus brunnicephalus เปรียบเทียบกับ Sterna aurantia
Side-by-Side Comparison
| คุณสมบัติ | Brown-headed Gull | River Tern |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Larus brunnicephalus | Sterna aurantia |
| อันดับ | Charadriiformes | Charadriiformes |
| วงศ์ตระกูล | Laridae | Laridae |
| สถานะการอนุรักษ์ | Least Concern | Vulnerable |
| ความยาว | — | — |
| กว้างปีก | 66.8 cm (26.3 in) | 52.4 cm (20.6 in) |
| น้ำหนัก | 584.0 g (20.60 oz) | 187.5 g (6.61 oz) |
| อาหาร | -- | -- |
| จำนวนไข่ | 1-4 | 3-4 |
| Population Trend | — | — |
Habitat Comparison
สถานะการอนุรักษ์
Least Concern
Brown-headed Gull
Vulnerable
River Tern
About These Birds
Brown-headed Gull
Brown-headed Gull, 41–46 cm, breeds at high-altitude Tibetan lakes and Central Asian wetlands, wintering on coasts from India to Southeast Asia. Brown hood in breeding plumage; white wing mirrors. Piscivore and invertivore; follows fishing activity in coastal bays.
River Tern
River Tern, 38–43 cm, is a large freshwater tern of South and Southeast Asia, found along major rivers from Pakistan to Thailand. Yellow-orange bill, grey back, black cap in breeding plumage. Piscivore; plunge-dives into clear river water. Near Threatened due to river sand-mining and disturbance.