Heermann's Gull vs Franklin's Gull
Larus heermanni ile kıyaslandığında Larus pipixcan
Side-by-Side Comparison
| Özellik | Heermann's Gull | Franklin's Gull |
|---|---|---|
| Bilimsel Ad | Larus heermanni | Larus pipixcan |
| Takım | Charadriiformes | Charadriiformes |
| Familya | Laridae | Laridae |
| Koruma Durumu | Near Threatened | Least Concern |
| Uzunluk | — | — |
| Kanat Açıklığı | 67,2 cm (26.5 in) | 55,9 cm (22.0 in) |
| Ağırlık | 448,26666666666665 g (15.81 oz) | 279,8333333333333 g (9.87 oz) |
| Beslenme | -- | -- |
| Kuluçka Büyüklüğü | 1-2 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
Ortak Yaşam Alanları
Heermann's Gull only
Hiçbiri
Franklin's Gull only
Koruma Durumu
Near Threatened
Heermann's Gull
Least Concern
Franklin's Gull
About These Birds
Heermann's Gull
Heermann's Gull, 46–51 cm, is distinctive — dark grey body, white head (breeding), red bill. Breeds almost entirely on Isla Rasa in the Gulf of California, then disperses north along the Pacific coast to British Columbia. Kleptoparasite; steals fish from Brown Pelicans. Near Threatened; range highly restricted.
Franklin's Gull
Franklin's Gull, 32–36 cm, makes one of the longest overland migrations of any gull, breeding on prairie marshes of North America and wintering on Pacific coasts of South America — a journey of 12,000+ km. Rosy-flushed underparts in spring; black hood with distinctive white eye-crescents. Insectivore.