NPSpecies

The Black-chinned sparrow breeds in the extreme southern US and winters even futher south, so migration through Wyoming is not likely. Rather, it is probably a vagrant.; Data Source: Doug Keinath-Lead Zoologist-Wyoming Natural Diversity Database There is no evidence of this species occurring in YNP; evidence for rare/vagrant species must be documented and accepted by the rare birds record committee in YNP and the respective state in which it was observed. This species appears on older versions of the checklist, but lacks the proper documentation; Data Source: Lisa Baril - YNP ornithologist.