Downy Woodpecker vs House Sparrow
Picoides pubescens 比較対象 Passer domesticus
Side-by-Side Comparison
| 属性 | Downy Woodpecker | House Sparrow |
|---|---|---|
| 学名 | Picoides pubescens | Passer domesticus |
| 目 | Piciformes | Passeriformes |
| 科 | Picidae | Passeridae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 16.0 cm (6.3 in) | 16.0 cm (6.3 in) |
| 翼開長 | 28.0 cm (11.0 in) | 25.0 cm (9.8 in) |
| 体重 | 27.0 g (0.95 oz) | 30.0 g (1.06 oz) |
| 食性 | Insects and larvae extracted from bark, supplemented with seeds, berries, and suet at feeders. Often … | Primarily seeds and grains, supplemented with insects during breeding season. Readily exploits human food scraps … |
| 一腹卵数 | -- | 1-8 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Downy Woodpecker
Deciduous and mixed forests, orchards, parks, and suburban areas. The most common woodpecker at feeders in North America.
House Sparrow
Closely associated with human habitation. Found in cities, towns, farms, and any built environment. Rarely found far from people.
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'.
House Sparrow
Monotonous series of chirping 'cheep' and 'chirrup' notes. Male gives 'chilp' song repeatedly. Flocks produce constant chirping chatter. No melodic song; purely functional calls.
Geographic Range & Migration
Downy Woodpecker
North America from Alaska and Canada south through the United States, excluding the arid Southwest.
House Sparrow
Native to Europe, Asia, and North Africa. Introduced to every continent except Antarctica, making it the most widely distributed wild bird.
保全状況
Downy Woodpecker
House Sparrow
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
House Sparrow
Males have grey crowns, chestnut napes, black bibs, and streaked brown backs. Females and juveniles are plain buffy-brown with a pale eyebrow stripe.
Short, stout, conical bill — black in breeding males, yellowish in non-breeding
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.
House Sparrow
スズメは人間の居住地に最も密接に関連する鳥の一つで、世界で最も広く分布する鳥種の一つ。原産地はヨーロッパ・アジアだが、人間とともに世界中に持ち込まれた。