[GodGunsGuts]

Genetic variation within the bird kind, then reproductive isolation.

[mamelukesabre]

Prove it.

I foresee a startling discovery in the near future. There have been thousands of these “new” finches inhabiting some valley someplace for thousands of years.

Like the difference between a greater and lesser prairie chicken.

[Stultis]

Genetic variation within the bird kind, then reproductive isolation.

Whoa! "the bird kind?" All birds represent a single created kind? So a hummingbird, an ostrich and a penguin are all related by common ancestry!? But humans and apes aren't?!