Blue Jay vs Red-tailed Hawk
Cyanocitta cristata เปรียบเทียบกับ Buteo jamaicensis
Side-by-Side Comparison
| คุณสมบัติ | Blue Jay | Red-tailed Hawk |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Cyanocitta cristata | Buteo jamaicensis |
| อันดับ | Passeriformes | Accipitriformes |
| วงศ์ตระกูล | Corvidae | Accipitridae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | 28.0 cm (11.0 in) | 53.0 cm (20.9 in) |
| กว้างปีก | 42.0 cm (16.5 in) | 124.0 cm (48.8 in) |
| น้ำหนัก | 87.0 g (3.07 oz) | 1080.0 g (38.10 oz) |
| อาหาร | Omnivorous — nuts (especially acorns), seeds, berries, insects, and occasionally eggs or nestlings of other … | Small to medium mammals, especially voles, mice, and rabbits. Also takes birds, reptiles, and large … |
| จำนวนไข่ | 2-7 | 2-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
ถิ่นที่อยู่อาศัยร่วมกัน
Blue Jay only
ไม่มี
Red-tailed Hawk only
Blue Jay
Deciduous and mixed forests, parks, and suburban areas. Highly adaptable to human-modified landscapes.
Red-tailed Hawk
Open country with scattered elevated perches such as trees, poles, and cliffs. Adaptable to farmland, grasslands, roadsides, and suburban areas.
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.
Red-tailed Hawk
Iconic, raspy descending scream: 'kreeeeee-ar', often used in films for all raptors. Gives short barking 'kak' notes near nest. Juveniles beg with persistent squealing whistles.
Geographic Range & Migration
Blue Jay
Eastern and central North America from southern Canada to the Gulf Coast. Some populations migrate irregularly.
Red-tailed Hawk
North America from Alaska to Panama, including the Caribbean. One of the most common raptors in North America.
สถานะการอนุรักษ์
Blue Jay
Red-tailed Hawk
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
Red-tailed Hawk
Variable plumage from pale to dark morphs. Most adults have rich brown upperparts, a pale breast with a dark belly band, and the characteristic rufous-red tail.
Dark hooked bill with a yellow cere
About These Birds
Blue Jay
The blue jay is a bold, intelligent member of the corvid family known for its striking plumage and loud calls. Blue jays are important dispersers of oak trees, as they cache thousands of acorns each autumn. Their complex social behavior includes mimicking the calls of hawks to scare other birds from feeders.
Red-tailed Hawk
The red-tailed hawk is the most widespread and common hawk in North America. Its screaming cry is so iconic that it is often dubbed over bald eagle footage in films and television. These adaptable raptors thrive in human-altered landscapes and are a familiar sight perched along highways.