Field
Guide IDs: BREEDING:
Mature coniferous
forest. ? broods. DISPLAYS:
? NEST:
On horizontal
branch; compact, deep, of weed stems, pine needles,
fine twigs, lichen, lined with soft, fine
materials. EGGS:
Creamy white,
finely flecked with browns, usu wreathed. 0.6" (17
mm). DIET:
Largely or entirely
insects during nesting. CONSERVATION:
Winters s to nc
Nicaragua. Rare cowbird host. NOTES:
Spends most of the
time actively foraging high in trees; males tend to
forage higher than females. Incubating female is a
"tight sitter" on nest. Occ hybridizes with
Townsend's Warbler. ESSAYS: REFERENCES:
Morrison,
1982.
Superspecies
#45
Dendroica occidentalis Townsend
NG-376; G-280; PW-p1 50; AW-pl 416;
AM(III)-140
Location
Type
Mating System
Parental Care
2ndary Diet..
Strategy
I:
12? DAYS
ALTRICIAL
(3-5)
MONOG
F-M?
.....GLEAN
HAWKS
Except for Stanford Notes, the material in this species treatment is taken, with permission, from The Birder's Handbook (Paul Ehrlich, David Dobkin, & Darryl Wheye, Simon & Schuster, NY. 1988). |