
American Crow (Common Crow)
Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Passeriformes, Family: Corvidae, Genus: Corvus, Species: Corvus brachyrhynchos
Family: Corvidae (Crows, Jays, and Magpies)
- Shape
- Highly asymmetrical vane, typical of an aerodynamic flight feather. The leading edge (outer vane) is much narrower than the trailing edge (inner vane). The tip is rounded but shows significant wear, and the overall outline is elongated and slightly tapered.
- Size
- Estimated at 6.5 to 8.5 inches in length. This is consistent with the primary flight feathers of a medium-large passerine like the American Crow, where primaries usually range from 15cm to 22cm.
- Rarity
- Very Common. One of the most ubiquitous and recognizable birds in North America.
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Description
The American Crow is a large, all-black passerine with a thick neck, heavy bill, and squared-off tail. This feather reflects the bird's hardy nature—stiff and functional. Crows are known for their social complexity and high intelligence, often seen in large seasonal roosts numbering in the thousands.
Colour & Pattern
Uniformly iridescent black to brownish-black. The dorsal surface shows a subtle violet or blue-green sheen (structural color) typical of corvids. The ventral (underside) appears more matte and grayish-black. The brownish tint toward the tip suggests sun-bleaching or an older feather nearing molt.
Barb Structure
Mostly pennaceous and tightly interlocked in the mid-section for flight stability. The base (calamus area) shows remnant plumulaceous (downy) barbs. The distal end shows significant fraying and separation of barbs due to wear.
Texture & Surface
The surface is stiff and somewhat glossy where the barbs are intact. The leading edge is noticeably stiffer to resist air pressure, while the overall texture feels smooth but resilient.
Key Features
Solid black coloration with structural iridescence, strong asymmetry of the vanes, and a thick, dark rachis. Lack of white or gray base patterns distinguishes it from many raptors.
Habitat
Extremely versatile; found in open woodlands, agricultural fields, grasslands, suburban yards, city parks, and shorelines. They generally avoid dense, unbroken coniferous forests.
Geographic Range
Widespread across North America, from southern Canada throughout the contiguous United States into northern Mexico. Most populations are year-round residents, though northernmost birds may migrate short distances south.
Ecological Role
Omnivorous scavengers and predators. They play a vital role in cleaning up carrion, dispersing seeds, and controlling insect populations, though they can also impact songbird populations by predating nests.
Similar Species
Common Raven (larger, more wedge-shaped tail feathers, heavier rachis), Fish Crow (nearly identical, usually requires vocalization or size comparison to distinguish), and Chough (different geographic range).
Interesting Facts
Crows are known to use tools, recognize individual human faces, and even hold 'funerals' where they gather around a deceased member of their species to assess potential threats in the area.
Condition Notes
Fair to Poor condition. The feather shows significant 'vane splaying' and terminal wear. There is evidence of abrasion at the tip, likely from contact with vegetation or ground-foraging. No clear fault bars are visible.