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Oak Titmouse

The Oak Titmouse (Baeolophus inornatus) is a passerine bird in the tit family Paridae. The American Ornithologists’ Union split the Plain
Titmouse into the Oak Titmouse and the Juniper Titmouse in 1996 due to distinct differences in song, preferred habitat, and genetic makeup. This species lives year-round on the Pacific slope, resident from southern Oregon south through California west of the Sierra Nevada to Baja California. It prefers open woodlands of warm, dry oak and oak-pine at low to mid-elevations.

The Oak Titmouse and Juniper Titmouse appear almost identical, but differ in voice as well as range. The Oak Titmouse has a browner back than the Juniper Titmouse. The Oak Titmouse gives a repeated series of three to seven syllables, each comprising one low and one high note, while the Juniper Titmouse song consists of a series of rapid syllables on the same note. Ranges overlap only in a small area in California. The Tufted Titmouse, which does not overlap in range, has whiter belly, rusty flanks, and black on the forehead.

Oak Titmice eat insects and spiders, and are sometimes seen catching insects in midair. They will also take berries, acorns, and some seeds. This species forages on foliage, twigs, branches, trunks, and occasionally on ground, sometimes hanging upside down to forage, and hammering seeds against branches to open them. Oak Titmice are attracted to feeders with suet, peanut butter and sunflower seeds.

The Oak Titmouse builds its nest in a woodpecker hole, a natural cavity, or a nest box, using grass, moss, mud, hair, feathers, and fur. It breeds from March into July, with peak activity in April and May, laying 3-9 eggs. The female is the primary incubator. Young are tended by both parents in nest for 16-21 days. Parents continue to tend to young for another three to four weeks after young leave nest.

Oak Titmouse


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