French: Bruant hudsonien German: Baumammer Spanish: Chingolo arbóreo
eastern Pennsylvania = Philadelphia, USA
Subspecies and Distribution
P. a. ochracea
(Brewster, 1882) – Alaska and in W Canada from N Yukon and NW Northwest Territories S to NW British Columbia and NC Alberta; winters in S Canada (W Saskatchewan) and N & W USA from South Dakota and N Iowa S to NE California, W & N Nevada, N Arizona, C New Mexico and C Texas.
P. a. arborea
(A. Wilson, 1810) – NC & E Canada from C & E Northwest Territories and W Nunavut E to Labrador, S to N Saskatchewan, N Manitoba, N Ontario and C Quebec; winters in E USA (from Minnesota, Wisconsin and N Michigan S to Oklahoma, Arkansas, Tennessee, North Carolina and Virginia) and SE Canada (S from S Ontario and SW Quebec, E to New Brunswick and Nova Scotia).
13·5–14·5 cm; 12·6–27·7 g. A slim sparrow with fairly long, notched tail. Nominate race has crown rusty, rusty postocular stripe... read more
Song, in summer often delivered at night, is a clear, sweet and musical “tsee tsee-tsi tsi... read more
Breeds in dwarf spruce (Picea) and birch (Betula) habitat at the edge of the tree... read more
Food and feeding
In summer, consumes variety of arthropods and also seeds of alder (Alnus), redroot pigweed (Amaranthus retroflexus) and... read more
Nest-building begins early to middle Jun, egg-laying mid-Jun to early Jul, fledglings late Jun through early Aug; generally single-brooded... read more
Migratory; entire population migrates S, males wintering farther N than females. Migratory routes... read more
Status and conservation
Not globally threatened (Least Concern). Often common or very common in appropriate habitat throughout most of range. Estimated global population has been put at 10,000,000... read more
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