The Crissal Thrasher is a dark, richly colored thrasher of desert washes and dense mesquite thickets named for its rusty crissum (undertail). It is a secretive skulker that is rarely seen despite giving loud, rich song. The combination of dark plumage, long decurved bill, and rusty undertail are diagnostic.
Best time to see a Crissal Thrasher
The best time to see a Crissal Thrasher is October–March, when about 61% of U.S. sightings happen, based on 1,475 research-grade iNaturalist observations.
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