
Eastern Kingbird
Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Passeriformes, Family: Tyrannidae, Genus: Tyrannus, Species: Tyrannus tyrannus
Family: Tyrannidae (Tyrant Flycatchers)
- Shape
- Slightly asymmetrical, elongated with a rounded tip and a distinct straight distal edge.
- Size
- Approximately 3.5 to 4.2 inches (9-11 cm) in length, which is consistent with the outer rectrices of an adult Eastern Kingbird.
- Rarity
- Common. They are conspicuous and widespread across their North American breeding range during the summer months.
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Description
This feather belongs to the Eastern Kingbird, a large, aggressive flycatcher known for its 'business suit' plumage—blackish above and white below. They are famous for their territorial behavior, often seen chasing away much larger birds like crows or hawks.
Colour & Pattern
Deep black to dark charcoal grey throughout the majority of the vane, terminating in a crisp, brilliant white band at the tip. The ventral side is slightly paler and more matte.
Barb Structure
Densely packed pennaceous barbs providing a stiff, flat surface for flight control. The base shows a small amount of plumulaceous (downy) structure near the calamus.
Texture & Surface
Smooth and somewhat glossy on the dorsal surface, designed for aerodynamic efficiency. The feather feels relatively stiff compared to body feathers.
Key Features
The terminal white band on a charcoal-black tail feather is the definitive diagnostic feature for the Eastern Kingbird, distinguishing it from all other North American flycatchers.
Habitat
Open areas with scattered trees, orchards, forest edges, wetlands, and fields. They prefer habitats near water where flying insects are abundant.
Geographic Range
Breeds across most of North America east of the Rockies and throughout Canada. Migrates long distances to spend the winter in South America, particularly the Amazon basin.
Ecological Role
Primary insectivore, acting as a natural pest control by catching bees, wasps, and beetles in mid-air. They serve as an indicator of healthy riparian and grassland ecosystems.
Similar Species
Restricted to Eastern Kingbird due to the unique white tip. Gray Kingbirds have notched tails without the white band; Loggerhead Shrikes have white on the outer vanes but not a clean terminal band.
Interesting Facts
The name 'Kingbird' and its scientific name 'Tyrannus' refer to its aggressive defense of its territory. Despite their small size, they have a concealed red or orange crown patch rarely seen unless the bird is excited.
Condition Notes
Good condition. The white tip is clean, and the barbs are mostly intact, suggesting the feather was naturally molted rather than lost to trauma.