Publication

The Evolution of Tree-nesting and the Origin of the Spotted Harrier

Posted:	02/10/2021
Author(s):	D. J. Baker-Gabb

It is suggested that the origin of harriers Circus spp. was in the southern hemisphere and not in the north as has been previously proposed. Data are presented to show that Spotted Harriers Circus assimilis were probably once ground-nesters like other harriers and that they have subsequently become more aboreal.

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