American Robin vs Blue Jay
Turdus migratorius 비교 대상 Cyanocitta cristata
Side-by-Side Comparison
| 속성 | American Robin | Blue Jay |
|---|---|---|
| 학명 | Turdus migratorius | Cyanocitta cristata |
| 목 | Passeriformes | Passeriformes |
| 과 | Turdidae | Corvidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | 25.0 cm (9.8 in) | 28.0 cm (11.0 in) |
| 날개 폭 | 36.0 cm (14.2 in) | 42.0 cm (16.5 in) |
| 체중 | 77.0 g (2.72 oz) | 87.0 g (3.07 oz) |
| 식성 | Earthworms, insects, and fruit. Famously hunts earthworms on lawns by running, stopping, and tilting its … | Omnivorous — nuts (especially acorns), seeds, berries, insects, and occasionally eggs or nestlings of other … |
| 산란 수 | 2-4 | 2-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
American Robin
Lawns, parks, gardens, farmland, and forest edges. One of the most familiar birds in suburban North America.
Blue Jay
Deciduous and mixed forests, parks, and suburban areas. Highly adaptable to human-modified landscapes.
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.
Blue Jay
A harsh, ringing 'jaay-jaay-jaay'. Also mimics Red-tailed Hawk and other species convincingly. Gives soft, liquid 'bell' calls and gurgling whispers in flocks.
Geographic Range & Migration
American Robin
North America from Alaska and Canada to Mexico. Northern populations migrate south in winter; southern populations are largely resident.
Blue Jay
Eastern and central North America from southern Canada to the Gulf Coast. Some populations migrate irregularly.
보전 상태
American Robin
Blue Jay
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
Blue Jay
Bright blue upperparts with black barring on the wings and tail. White face and underparts with a black necklace. Prominent blue crest.
Stout, straight black bill
About These Birds
American Robin
아메리카울새는 북미 전역에서 봄의 전령으로 널리 알려져 있다. 이름과 달리 실제 유럽울새와 관련이 없으며, 지빠귀과(Turdidae)에 속한다. 빨간 가슴과 노래 소리로 쉽게 알아볼 수 있다.
Blue Jay
어치는 화려한 깃털과 큰 울음소리로 알려진 까마귀과의 대담하고 지능적인 구성원입니다. 가을마다 수천 개의 도토리를 저장하기 때문에 참나무 나무의 중요한 산포자입니다. 복잡한 사회 행동으로 먹이통에서 다른 새들을 겁주기 위해 매의 울음소리를 흉내 내기도 합니다.