Maui Grosbeak (Chloridops sp.)

This form is known from a complete subfossil mandible that was found in the Pu’u Naio Cave on the island of Maui, Hawaiian Islands and which differs from the Wahi Grosbeak (Chloridops wahi James & Olson) in being about 18% smaller.

More material is needed before it is clear whether this form represents some kind of extreme intraspecific variation in the Wahi Grosbeak or a distinct species. [1]

*********************

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

*********************

edited: 08.10.2020