In short, getula derived from a common ancestor, and spread across north America. Then due to climate change(drying), suitable habitat shrank and left pockets of getula that evolved into separated types(was subspecies) These pockets went thru periods of minor expansion, and major contraction, most likely many times. The key here is, there has not been expansion for thousands of years, which means, recent intergration is highly unlikely. So if these populations have not had expansion for a thousand years, 500 hundred years, heck even 200 years, they cannot be intergrades, but are a product of genotype and unstable(changing) habitat.
All in all, it doesn't matter, which is why Hubbsy and I do not fight about it, we talk about it, The animals, are what they are, no matter what we think. Its merely fun to think about how they got here and what they are. end part 2

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