Peruvian Rail (Rallus semiplumbeus ssp. peruvianus)
The Peruvian Rail was described in 1886 as a subspecies of the Bogota Rail (Rallus semiplumbeus P. L. Sclater) based on a single specimen that was collected somewhere in the Peruvian highlands.
The supposed subspecies reached a size of about 25 cm and is said to have differed from the nominate form sufficiently enough to warrant full species status.
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edited: 10.09.2019