In which locations might a birder observe White-crowned Sparrows as year-round residents?
Answer
Along the Pacific coast, particularly in California.
Residency status for the White-crowned Sparrow is heavily dependent on geography and the local subspecies present. While many populations undertake significant southward migrations, certain subspecies found along the Pacific coast, especially in areas like California, may exhibit resident behavior. These coastal populations might not engage in long migrations at all or may only move short distances south along the shoreline, allowing birders in those specific locales to observe them throughout the entire annual cycle.

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