Blue Jay vs Common Kestrel
Cyanocitta cristata 비교 대상 Falco tinnunculus
Side-by-Side Comparison
| 속성 | Blue Jay | Common Kestrel |
|---|---|---|
| 학명 | Cyanocitta cristata | Falco tinnunculus |
| 목 | Passeriformes | Falconiformes |
| 과 | Corvidae | Falconidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | 28.0 cm (11.0 in) | 34.0 cm (13.4 in) |
| 날개 폭 | 42.0 cm (16.5 in) | 74.0 cm (29.1 in) |
| 체중 | 87.0 g (3.07 oz) | 190.0 g (6.70 oz) |
| 식성 | Omnivorous — nuts (especially acorns), seeds, berries, insects, and occasionally eggs or nestlings of other … | Primarily voles and mice, also lizards, large insects, and small birds. Hunts by hovering at … |
| 산란 수 | 2-7 | 1-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Blue Jay
Deciduous and mixed forests, parks, and suburban areas. Highly adaptable to human-modified landscapes.
Common Kestrel
Open country including farmland, grasslands, moorland, and urban areas. Common along motorways and in cities across Europe.
Song & Call Comparison
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.
Common Kestrel
A shrill, repeated 'kee-kee-kee-kee' or 'kik-ik-ik', especially near nest. Alarm call is a nasal chattering. Generally less vocal than larger falcons. Calls ring clearly in open country.
Geographic Range & Migration
Blue Jay
Eastern and central North America from southern Canada to the Gulf Coast. Some populations migrate irregularly.
Common Kestrel
Europe, Asia, and Africa. One of the most common and widespread raptors in the Old World.
보전 상태
Blue Jay
Common Kestrel
How to Tell Them Apart
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
Common Kestrel
Males have a blue-grey head and tail with a rufous back spotted with black. Females are rufous-brown with heavy barring. Both have a dark moustachial stripe.
Short, hooked grey bill with a yellow cere
About These Birds
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.
Common Kestrel
황조롱이는 유럽에서 가장 흔한 매로, 날아오르며 정지 비행하는 능력으로 유명하다. 적갈색 등과 뾰족한 날개를 가지며 고속도로 옆과 도심 지역을 포함한 다양한 서식지에서 볼 수 있다.