[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: four winged Archaeopteryx

Andreas Johansson wrote:

Wouldn't the naked faces of vultures be an instance of partial feather loss within Neornithes?

Yes, it would. (Although I've been told many vulture species do retain small down-like feathers on the otherwise 'naked' face and neck.) However, no modern bird is completely featherless.