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1 September 2000 Forehead Feathers of the Pied-Billed and Atitlán Grebes
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Abstract

In grebes of the genus Podilymbus, the upper barbs of the forehead feathers are fused with the shaft into a somewhat flattened, pointed structure. We believe that when raised, these feathers may indicate a low probability of attack.

Robert W. Storer and Martin J. Muller "Forehead Feathers of the Pied-Billed and Atitlán Grebes," The Wilson Bulletin 112(3), 411-412, (1 September 2000). https://doi.org/10.1676/0043-5643(2000)112[0411:FFOTPB]2.0.CO;2
Received: 8 November 1999; Accepted: 1 March 2000; Published: 1 September 2000
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