Black-billed Magpie (American Magpie)
Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Passeriformes, Family: Corvidae, Genus: Pica, Species: P. hudsonia · Corvidae (Crows, Jays, and Magpies) · Primary flight feather (outer remex), likely P9 or P10
Species
Pica hudsonia
Feather Type
Primary flight feather (outer remex), likely P9 or P10
Family
Corvidae (Crows, Jays, and Magpies)
Shape
Highly asymmetrical with a very narrow leading edge (outer vane) and a broad trailing edge (inner vane). The tip is rounded but tapered, and the outer vane shows significant emargination characteristic of primary feathers.
Size
Estimated 5.5 to 7.0 inches (14-18 cm) in length. This is consistent with the primary flight feathers of an adult Black-billed Magpie, which is a medium-sized passerine.
Rarity
Common; they are abundant and highly visible residents throughout their range, often seen scavenging along roadsides or in agricultural fields.
Color & Pattern
Striking bicolor pattern. The distal (outer) half and the entire leading edge are a deep, iridescent brownish-black with a subtle green or blue sheen. The proximal (inner) portion of the inner vane is bright stark white, creating the 'magpie flash'. The rachis transitions from dark at the tip to pale at the base.
Barb Structure
Densely interlocked pennaceous barbs throughout most of the vane, giving the feather a stiff, aerodynamic surface. The lower portion near the calamus shows a small amount of plumulaceous (downy) structure for insulation near the skin.
Texture & Surface
Smooth, stiff, and glossy. The dark portions of the feather exhibit a structural iridescence that can appear oil-slicked in direct sunlight. The trailing edge is softer to the touch than the leading edge.
Description
This feather belongs to the Black-billed Magpie, a flamboyant member of the crow family. The bird is known for its long, diamond-shaped tail and bold black-and-white plumage. When perched, they appear mostly black, but in flight, the white primaries (like the one shown) create a stunning flash that contrasts with the deep iridescent blues and greens of their wings and tail.
Key Features
Bold white patch on the inner vane of a dark primary feather; high asymmetry; deep iridescence on the dark barbs; specific size range for a large corvid.
Habitat
Open woodlands, riparian thickets, rangelands, and suburban areas. They prefer areas with thickets for nesting and open ground for foraging.
Geographic Range
Western half of North America, ranging from coastal Alaska and western Canada down through the Great Plains to the southwestern United States.
Condition Notes
The feather appears to be in Good to Excellent condition. The vane is mostly intact with minimal fraying at the tip, suggesting it was recently molted or freshly dropped. No significant fault bars are visible.
Interesting Facts
Magpies are among the most intelligent animals on Earth, capable of recognizing themselves in mirrors. They are also famous for building massive, domed stick nests that can sometimes be two feet wide.
Ecological Role
Omnivorous scavengers and predators. They play a vital role in cleaning up carrion and controlling insect populations, but they also prey on the eggs and nestlings of other birds.
Similar Species
Eurasian Magpie (Pica pica) feathers are nearly identical but found in a different geographic range. Feathers of some gulls or shorebirds have white patches, but they lack the specific corvid texture and deep iridescence found here.