Brown Thrasher
Toxostoma rufum
The brown thrasher is bright reddish-brown above with thin, dark streaks on its buffy underparts. It has a whitish-colored chest with distinguished teardrop-shaped markings on its chest. Its long, rufous tail is rounded with paler corners, and eyes are a brilliant yellow. Its bill is brownish, long, and curves downward. Both male and females are similar in appearance. The juvenile appearance of the brown thrasher from the adult is not remarkably different, except for plumage texture, indiscreet upper part markings, and the irises having an olive color.
ID text from Wikipedia, CC BY-SA 4.0

California Thrasher
Toxostoma redivivum
The California thrasher is about 32 cm (13 in) long and weighs up to 90 g (3.2 oz); it is the largest thrasher. It has a distinctive long, decurved beak and a long tail. It is generally deep grayish brown above with olive tones on the tail. It has a grayish buff supercilium, a dark cheek pattern and eye line, and unlike most thrashers, has dark eyes. The underparts are mostly buffy to tawny brown, with the upper breast and flanks a smoky gray. The two subspecies differ only slightly. Voice: The California thrasher is recognized as a "striking and exuberant songster" known for its mimicking capabilities. It imitates many of the species that share its habitat, a trait that has been documented as reflecting a rich vocal repertoire, showcasing a wide range of vocal imitations from other species.
ID text from Wikipedia, CC BY-SA 4.0

Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Brown Thrasher and California Thrasher.