It is my understanding that two individuals that can produce viable offspring
are the same species by definition; and a hybrid is the offspring of two
individuals of different species and is therefore not viable. Am I mistaken? or
have the definitions of species and hybrid changed? If there are different
degrees of mixing, then the offspring must be reproducing in turn.
Andy Thomas
From: Noah Strycker <noah.strycker@xxxxxxxxx>
Subject: [obol] Re: The continuing Sapsucker Dilemma
[...] I suppose this is a philosophical question of bird ID: When do you call a
bird a hybrid? [...]
