Rich,
That's interesting. If I saw that tree rat that you posted, I would think it was an ordinary grey squirrel.
I would be questioning what I see here most often, except the article that you linked to said that we don't have fox squirrels in New England. Or, very few.
So, the grey or black ones that I see here are most likely variations of the grey squirrel. I'm pretty much okay with them. They seem pretty laid back, for a squirrel. I stopped using a bird feeder because they were destroying it. Now, when I feed the birds, I just scatter a small amount of seed on the ground. When the greys do show up, they eat right alongside the birds, instead of chasing them away, like they did with a feeder.
Then, there's what I'm referring to as the reds.
They're smaller than the greys, and seem quicker and almost spastic in their movements sometimes.
They kind of look like a squirrel and a chipmunk got together.
I definitely don't see as many of them; maybe two. But for me, that's two too many!
And we're crawling alive with chipmunks.
I'll figure something out. I personally don't like the idea of catching them in a humane trap and then giving them swimming lessons.
I've seen a variation of that trap that mounts on a tree or post, and pops them in the head when they go in to find the bait. The one I saw was powered by a CO2 cartridge. They were kind of spendy though, and not easy to find. Plus, it's not like I could post a sign on it "Red squirrels only".
I really don't want to be killing off all the greys in hopes of getting rid of the few reds.
Barry