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Re: bald (featherless) birds

Other featherless birds are Fruitcrows, actually
cotingas. Larger hornbills have unfeathered throat.

Baldness occur in most groups, seems to be more common
in big and fruit-eating birds and not present is
seabirds. It is still one or a few species in a large
group. Together, maybe 1-2% of 9500+ modern bird
species have bald heads. 

Jerzy 



                
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