Kaua’i Grosbeak (Chloridops sp.)  

This species is known only from several subfossil remains that were recovered from the Makawehi Dunes on the island of Kaua’i, Hawaiian Islands.  

The Kauai Grosbeak obviously was quite similar to the Wahi Grosbeak (Chloridops wahi James & Olson) from the island of O’ahu, but differed from that species by a broader lingual through in its mandible. [1]  

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References:  

[1] S. L. Olson; H. F. James: Descriptions of thirty-two new species of birds from the Hawaiian Islands: Part II. Passeriformes. Ornithological Monographs 45: 1-91. 1991  

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edited: 24.09.2017