The 5 Bird Species that Darwin Couldn't Discover in Madeira and the Azores (2 of 2) (IMAGE)

Spanish Foundation for Science and Technology

The 5 Bird Species that Darwin Couldn't Discover in Madeira and the Azores (2 of 2)

Caption

Rallus aquaticus skull (above) and Rallus "minutus" (below). Scale: 2 cm.

Credit

Alcover et al.

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