Yellow-rumped Warbler
(Dendroica coronata) B/M |
 |
RANGE: The northern and eastern (Myrtle) race
breeds from western Alaska and central Mackenzie to
north-central Labrador south to northern British Columbia,
southeastern Saskatchewan, central Michigan, and Massachusetts,
and in the Appalachians to eastern West Virginia. The western
(Audubon's) race breeds from central British Columbia and
southwestern Saskatchewan south to southern California across to
western Texas. The Myrtle race winters from southwestern British
Columbia through the Pacific States, southern Arizona, and
Colorado, and from Kansas east across the central United States
to New England, and south to Panama. The Audubon's race winters
from southwestern British Columbia and Idaho south to Central
America.
STATUS: Common.
HABITAT: Generally inhabits coniferous forests throughout its
range, but also found in aspen forests in the Rocky Mountains.
In the West, prefers timbered sites with a low percent canopy
cover, and forest edges such as those around meadows or lakes.
In the East, prefers spruce-fir woodlands, but also frequents
young coniferous growth near the edges of woods, mixed woods,
and evergreen plantations.
SPECIAL HABITAT REQUIREMENTS: Coniferous trees for nesting.
Strongest nesting habitat associations in (1) Wide range
of mountain hemlock forest types, (2) Wide range of Lodgepole
pine forest types, (3) Ponderosa pine-dominant mixed conifer
forest, (4) Douglas-fir-Port Orford cedar forest, (5) Grassland
and fir-ponderosa interspersed, and (6) Subalpine scattered
trees and shrubs.
NEST: Builds nest well out on a horizontal branch in a conifer
tree, screened from above by clumps of needles. Typically
locates nest 15 to 20 feet above the ground, but sometimes 4 to
50 feet.
FOOD: Eats insects gleaned from foliage and caught by hawking.
Also searches for food on the ground. In winter, largely
subsists on berries.
REFERENCES: Adamus et al. 2001, Beal and McAtee 1912, Bent
1953a, DeGraff et al. 1980, Griscom and Sprunt 1979, Johnsgard
1979, Kaufman in Farrand 1983c, Miller 1999, Shunk 2004, Verner
and Boss 1980. |
