
Yellow-bellied Sapsucker
Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Piciformes, Family: Picidae, Genus: Sphyrapicus, Species: Sphyrapicus varius
AI-generated identification · may be incorrectFamily: Picidae (Woodpeckers and allies)
- Shape
- Generally symmetrical with a stiff, pointed tip and a broad, sturdy base. The tip shows slight wear or a blunt-lobed appearance characteristic of woodpecker tail feathers used as props.
- Size
- Estimated 7-9 cm (2.8-3.5 inches) long. This fits perfectly within the size range for a rectrix of a medium-sized woodpecker like the Yellow-bellied Sapsucker.
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Description
This is a rectrix from a Yellow-bellied Sapsucker, a medium-sized woodpecker known for drilling neat rows of holes in tree bark. The bird features a red cap, white wing patches, and a yellowish wash on the belly. Its tail feathers are specially adapted with stiff shafts to act as a tripod leg while the bird works on a trunk.
Colour & Pattern
Distinctive high-contrast pattern consisting of a deep brownish-black or dark charcoal base with prominent white horizontal bars/spots along both vanes. The tip is edged with a thin white margin.
Barb Structure
Tightly interlocked pennaceous barbs throughout most of the vane to provide rigidity. The barbules are strong and well-connected. Some plumulaceous (downy) structure is visible at the very base (calamus area).
Rachis & Barb Pattern
The rachis is dark, thick, and exceptionally stiff to support the bird's weight. Barbs are densely packed and emerge at an acute angle to maximize structural integrity.
Texture & Surface
Smooth, firm, and glossy. The surface feels somewhat rigid or springy due to its specialized function as a support structure during climbing.
Feather Placement
Tail (Rectrix). The stiff rachis and reinforced tip indicate it is used for bracing against tree trunks during foraging.
Key Features
Bold white barring on a dark blackish-brown ground; stiff, reinforced rachis; pointed/blunted tip for climbing support; size fits a medium woodpecker.
Habitat
Deciduous and mixed coniferous forests; particularly fond of young forests and edges where their preferred sap trees (birch, maple) are abundant.
Geographic Range
Breeds across Canada and the northeastern United States; migrates to the southeastern US, Mexico, and Central America for the winter.
Ecological Role
Primary cavity nester and sap-producer. They create habitats for other cavity-nesting birds and provide a consistent sugar source for the local ecosystem.
Similar Species
Downy Woodpecker feathers are smaller and usually have more white on the outer rectrices; Hairy Woodpeckers have larger feathers with similar patterns but often less dense barring on the central pairs.
Interesting Facts
Yellow-bellied Sapsuckers are 'keystone' species; the sap wells they drill provide food for over 35 other species, including hummingbirds and butterflies.
Cultural Significance
Woodpecker feathers have historically been used in some Indigenous North American adornments, though sapsuckers specifically are less common in historical millinery than larger woodpeckers.
Field Identification Tips
Look for these feathers near trees with 'sap wells'—rows of small, shallow holes in the bark—during late summer or early autumn molting season.
Condition Notes
Good condition. There is minor fraying at the tip and edges, consistent with a feather used for mechanical support against rough bark before being molted.