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Side-by-Side Comparison

属性	Ivory-billed Woodpecker	Downy Woodpecker
学名	Campephilus principalis	Picoides pubescens
目	Piciformes	Piciformes
科	Picidae	Picidae
保全状況	Critically Endangered	Least Concern
体長	—	16.0 cm (6.3 in)
翼開長	51.2 cm (20.2 in)	28.0 cm (11.0 in)
体重	510.0 g (17.99 oz)	27.0 g (0.95 oz)
食性	--	Insects and larvae extracted from bark, supplemented with seeds, berries, and suet at feeders. Often …
一腹卵数	2-4	--
Population Trend	—	—

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Size Comparison

Body Length

Ivory-billed Woodpecker —

Downy Woodpecker 16.0 cm

翼開長

Ivory-billed Woodpecker 51.2 cm

Downy Woodpecker 28.0 cm

体重

Ivory-billed Woodpecker 510.0 g

Downy Woodpecker 27.0 g

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Habitat Comparison

共通生息地

None

Ivory-billed Woodpecker only

🌲 Forest

Downy Woodpecker only

None

Downy Woodpecker

Deciduous and mixed forests, orchards, parks, and suburban areas. The most common woodpecker at feeders in North America.

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Song & Call Comparison

Ivory-billed Woodpecker

Downy Woodpecker

さえずり

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'.

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Geographic Range & Migration

Ivory-billed Woodpecker

Downy Woodpecker

North America from Alaska and Canada south through the United States, excluding the arid Southwest.

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保全状況

Critically Endangered

Ivory-billed Woodpecker

Least Concern

Downy Woodpecker

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How to Tell Them Apart

Ivory-billed Woodpecker

Downy Woodpecker

羽毛

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.

くちばし

Short, chisel-shaped, dark bill — noticeably shorter than the similar hairy woodpecker

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About These Birds

Ivory-billed Woodpecker

かつて北米南東部の大規模なバードフォードの森林に生息していた大型のキツツキ（体長48〜53cm）。雄は黒い体に赤い冠、白い翼模様が特徴的だった。Campephilus principalis（キタゾウゲキツツキ）は生息地の大規模な森林破壊により20世紀中頃に絶滅したとされるが、21世紀にもアーカンソー州での目撃情報が相次いでいる。Picidae科。

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.

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Related Comparisons

Common Nightingale vs Downy Woodpecker

look-alike

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Bennett's Woodpecker Campethera bennettii Sulu Pygmy Woodpecker Picoides ramsayi Kaempfer's Woodpecker Celeus obrieni Splendid Woodpecker Campephilus splendens All Picidae birds →

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