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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
保护状况	Critically Endangered	Least Concern
体长	—	16.0 cm (6.3 in)
翼展	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 …
产卵数	2-4	--
Population Trend	—	—

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Size Comparison

Body Length

Ivory-billed Woodpecker —

Downy Woodpecker 16.0 cm

翼展

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

共同栖息地

无

Ivory-billed Woodpecker only

🌲 Forest

Downy Woodpecker only

无

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

鸣唱

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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保护状况

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.

喙

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

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About These Birds

Ivory-billed Woodpecker

象牙嘴啄木鸟曾是北美最大的啄木鸟（约500克），具有鲜艳的红色冠羽（雄）和黑色冠羽（雌），翅膀上具大型白斑。依赖大面积成熟落叶林，以大型树皮甲虫幼虫为食。极危/可能已灭绝；因森林砍伐导致栖息地丧失而于20世纪中叶急剧减少。

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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