Outer toe much longer than the inner; bill rather short, stout …
_Columba._
Outer toe scarcely longer than the inner; bill lengthened,
compressed …
_Patagiœnas._
=Ectopistes.= Head very small; tail much lengthened, cuneate.
A History of North American Birds; Land Birds; Vol. 3 of 3 · 第 184 / 607 题