Year: 2025
Type: article
Abstract: The Fox Sparrow (Passerella iliaca) is a regular winter resident of thickets and riparian corridors in the Central Valley. It is a highly variable species, with at least thirteen subspecies divided into four groups. A recent DNA analysis suggested that the four groups are well-defined and distinct from each other, thus meriting species status (Zink and Weckstein 2003). The American Ornithological Union, however, has yet to act on this due to apparent intergrades between groups. While all four of the groups and most of the subspecies occur in the Central Valley, their status and field identification criteria are not widely understood.
Source: Central Valley Birds
DOI: 10.64555/yaakc773
Author: Steve Hampton
Language: English
Topic: Avian ecology and behavior
Subfield: Ecology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4414567002
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