What is the full binomial nomenclature for the White-crowned Sparrow?
Answer
Zonotrichia leucophrys
The full binomial nomenclature, which provides a universal, standardized identifier for the species, is *Zonotrichia leucophrys*. This two-part name consists of the genus name (*Zonotrichia*) followed by the specific epithet (*leucophrys*). This system is crucial for avoiding the confusion caused by regionally varying common names. It specifically identifies this species, setting it apart from related species like *Zonotrichia albicollis* (White-throated Sparrow) and subspecies designations such as *Z. l. gambelii*.
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