Saipan Rail (Gallirallus sp.)

This up to now undescribed species is only known from subfossil bones found on Saipan Island in the Mariana Archipelago.  

The species resembled the only surviving endemic rail species of the Mariana Islands, the Guam rail (Gallirallus owstoni (Rotschild)). [1]

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References:

[1] David W. Steadman: Extinction and Biogeography of Tropical Pacific Birds. University of Chicago Press 2006

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edited: 02.05.2021