Downy Woodpecker vs アカオノスリ
Picoides pubescens 比較対象 Buteo jamaicensis
Side-by-Side Comparison
| 属性 | Downy Woodpecker | アカオノスリ |
|---|---|---|
| 学名 | Picoides pubescens | Buteo jamaicensis |
| 目 | Piciformes | Accipitriformes |
| 科 | Picidae | Accipitridae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 16.0 cm (6.3 in) | 53.0 cm (20.9 in) |
| 翼開長 | 28.0 cm (11.0 in) | 124.0 cm (48.8 in) |
| 体重 | 27.0 g (0.95 oz) | 1080.0 g (38.10 oz) |
| 食性 | Insects and larvae extracted from bark, supplemented with seeds, berries, and suet at feeders. Often … | Small to medium mammals, especially voles, mice, and rabbits. Also takes birds, reptiles, and large … |
| 一腹卵数 | -- | 2-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
共通生息地
None
Downy Woodpecker only
None
アカオノスリ only
Downy Woodpecker
Deciduous and mixed forests, orchards, parks, and suburban areas. The most common woodpecker at feeders in North America.
アカオノスリ
Open country with scattered elevated perches such as trees, poles, and cliffs. Adaptable to farmland, grasslands, roadsides, and suburban areas.
Song & Call Comparison
Downy Woodpecker
A sharp 'pik' or 'peek' contact call. Drums on resonant branches with a rapid, light tattoo — softer than larger woodpeckers. Also gives a high descending whinny 'keeer-keeer'.
アカオノスリ
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
Downy Woodpecker
North America from Alaska and Canada south through the United States, excluding the arid Southwest.
アカオノスリ
North America from Alaska to Panama, including the Caribbean. One of the most common raptors in North America.
保全状況
Downy Woodpecker
アカオノスリ
How to Tell Them Apart
Downy Woodpecker
Black and white plumage with a broad white stripe down the back. Black wings with white spots. Males have a small red patch on the nape.
Short, chisel-shaped, dark bill — noticeably shorter than the similar hairy woodpecker
アカオノスリ
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
Downy Woodpecker
The downy woodpecker is the smallest and most widespread woodpecker in North America. Its small size allows it to forage on thin branches and weed stems that larger woodpeckers cannot access. Downies often join mixed-species flocks in winter, benefiting from the extra vigilance of multiple species watching for predators.
アカオノスリ
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.