American Robin vs Bicknell's Thrush
Turdus migratorius เปรียบเทียบกับ Catharus bicknelli
Side-by-Side Comparison
| คุณสมบัติ | American Robin | Bicknell's Thrush |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Turdus migratorius | Catharus bicknelli |
| อันดับ | Passeriformes | Passeriformes |
| วงศ์ตระกูล | Turdidae | Turdidae |
| สถานะการอนุรักษ์ | Least Concern | Vulnerable |
| ความยาว | 25.0 cm (9.8 in) | — |
| กว้างปีก | 36.0 cm (14.2 in) | 18.2 cm (7.2 in) |
| น้ำหนัก | 77.0 g (2.72 oz) | 27.583333333333332 g (0.97 oz) |
| อาหาร | Earthworms, insects, and fruit. Famously hunts earthworms on lawns by running, stopping, and tilting its … | -- |
| จำนวนไข่ | 2-4 | 3-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
ถิ่นที่อยู่อาศัยร่วมกัน
American Robin only
Bicknell's Thrush only
ไม่มี
American Robin
Lawns, parks, gardens, farmland, and forest edges. One of the most familiar birds in suburban North America.
Song & Call Comparison
American Robin
A clear, caroling song of 2-3 note phrases: 'cheerily, cheer-up, cheerio'. Sings from dawn perches. Sharp 'tut-tut-tut' alarm call and thin 'seeee' flight note.
Bicknell's Thrush
Geographic Range & Migration
American Robin
North America from Alaska and Canada to Mexico. Northern populations migrate south in winter; southern populations are largely resident.
Bicknell's Thrush
สถานะการอนุรักษ์
American Robin
Bicknell's Thrush
How to Tell Them Apart
American Robin
Dark grey-brown upperparts with a warm brick-red breast and belly. White eye-ring and streaked white throat. Female slightly paler.
Bright yellow bill with a dark tip
Bicknell's Thrush
About These Birds
American Robin
The American robin is widely regarded as a harbinger of spring across North America. Despite its name, it is a true thrush unrelated to the European robin. American robins produce two to three broods per year and are among the earliest birds to sing in the morning chorus.
Bicknell's Thrush
Bicknell's Thrush is a vulnerable, secretive thrush that breeds in dense montane spruce-fir forests in the northeastern United States and adjacent Canada. It has brown upperparts, spotted buff-white underparts, and a faint yellowish base to the lower mandible. It winters in the Caribbean, particularly Hispaniola, where it is threatened by habitat loss at both ends of its migration.