Here is infomation about the Red Faced Warbler from my book: Warblers of Arizona
Common Name:Red Faced Warbler
Scientific Name:Cardellina rubrifrons
Conservation Status: Least Concern, population trends are unknown; Red Faced Warblers are sensitive to disturbance during breeding; global estimates are 700,000
Size:5.5 inches
Description: red face, chin, throat, and upper belly; black cap that extends down sides of head; short thick dark bill; single white wing bar; pale white rump; whitish belly and undertail coverts; long gray tail
Male/Female:nearly identical; female may have a slightly paler face
Range:Southeast Arizona/New Mexico to Honduras
Migration:summers in Arizona and Mexico, winters in Central America
Season for Arizona:April through September
Habitat:higher elevation (6400 to 9000 feet) pine-oak forests; shaded canyons near water
Community Behavior:solitary or with other Red Faced Warblers or Painted Redstarts
Feeding Behavior:gleans insects primarily from tips of mid-tree (deciduous and confir) branches hopping quickly from branch to branch; will sally out to snatch flies
Diet:forages mostly on terrestrial invertebrates including spiders, ants, and caterpillars;
Nesting Behavior:nests in small hole in ground beneath logs or plants; open cup of bark, leaves, or pine needles lined with grass and hair; 3-4 pinkish-white eggs with fine brown speckles; incubation is 13-15 days; nestling is 11-13 days; both parents feed the young
Where to Find in Southern Arizona: Mount Lemmon especially Upper Sabino Canyon Trail, Incinerator Ridge, Marshall Gulch, and Bear Wallow; also Huachuca Canyon, Madera Canyon, Miller Canyon; this is a priority find for out-of-state birders
Comments:either sex solicits copulations; both male and female quiver their wings during courtship with the male showing off its white rump patch; may have multiple partners during the breeding season
Now some photos from Mount Lemmon I have taken in the past two weeks:
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