Heermann's Gull vs Franklin's Gull
Larus heermanni в сравнении с Larus pipixcan
Side-by-Side Comparison
| Характеристика | Heermann's Gull | Franklin's Gull |
|---|---|---|
| Научное название | Larus heermanni | Larus pipixcan |
| Отряд | Charadriiformes | Charadriiformes |
| Семейство | Laridae | Laridae |
| Охранный статус | Near Threatened | Least Concern |
| Длина | — | — |
| Размах крыльев | 67,2 cm (26.5 in) | 55,9 cm (22.0 in) |
| Масса | 448,26666666666665 g (15.81 oz) | 279,8333333333333 g (9.87 oz) |
| Питание | -- | -- |
| Размер кладки | 1-2 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
Охранный статус
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.