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Yellow-bellied Sapsucker
Primary flight feather (lower primary, likely P1-P4)

Yellow-bellied Sapsucker

Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Piciformes, Family: Picidae, Genus: Sphyrapicus, Species: Sphyrapicus varius

Family: Picidae (Woodpeckers, Sapsuckers, and Flickers)

Shape
Relatively symmetrical vane with a slightly tapered, rounded tip; typical of inner primaries or outer secondaries of medium-sized woodpeckers.
Size
Approximately 2.5 to 3.5 inches in length. This is consistent with the primary feathers of a medium-sized woodpecker like a sapsucker.
Rarity
Common; a widespread species frequently encountered in appropriate habitat and during migration.
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Description

The Yellow-bellied Sapsucker is a medium-sized woodpecker known for its unique feeding habit of drilling neat rows of holes in tree bark. Adults have a red forehead (and throat in males), a black-and-white patterned body, and a distinctive long white wing patch that is visible even when the bird is perched.

Colour & Pattern

Bold, high-contrast black and white horizontal barring. The black is deep and melanistic; the white bars are clean and distinct. This 'ladder-back' pattern is diagnostic of several woodpecker species.

Barb Structure

Tightly interlocked pennaceous barbs throughout most of the vane; plumulaceous (downy) barbs at the very base for insulation.

Texture & Surface

Stiff and smooth with a slight gloss on the black bars. The feather is engineered for the high-stress environment of flight and drumming.

Key Features

Sharp black-and-white horizontal barring, small size, and a dark rachis. This specific 'zebra stripe' pattern on flight feathers is a hallmark of the sapsucker genus.

Habitat

Mixed coniferous and deciduous forests, especially areas with young trees or birch, aspen, and maple which are preferred for sapwells.

Geographic Range

Breeds across Canada and the northeastern US; migrates to the southern US, Mexico, and Central America for the winter.

Ecological Role

A keystone species; they create food sources (sap) and nesting cavities used by dozens of other species of birds and mammals.

Similar Species

Hairy Woodpecker (larger, different barring spacing), Downy Woodpecker (smaller, fewer bars), and Northern Flicker (which has yellow or red shafts).

Interesting Facts

The sapwells they drill are vital for other wildlife; hummingbirds, for example, often follow sapsuckers to feed on the sap and the insects attracted to it.

Condition Notes

Very good condition. The barbs are intact and zipped together; there is little evidence of wear or sun-bleaching, suggesting it was molted recently.