A Guide to Some Possible Bird Species Splits in Costa Rica
10,000 Birds
MARCH 21, 2015
Taxa that could end up being split into one species occurring north of the Isthmus of Tehuantepec, and one south of the isthmus. (2). A species that lives in both Costa Rica and South America but might be two separate species. (3). Bird species that require further research. A Common Chlorospingus from Costa Rica.
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