I have sent Dennis's comments to a friend who resides on SJ Island. Here are some of his comments:

Yes, there are some very interesting patterns out here. Considering our proximity to several major universities, and the relative ease of getting around the islands, I've always been astounded that people haven't done more research in the San Juans. The chipmunks are primarily on Lopez. Douglas squirrels on Orcas and Blakely. Coyotes are on Guemes and have recently swum the channel to Cyprus, but still haven't breached Rosario Strait to the rest of the islands. Flying squirrels are in fact here, though restricted to San Juan Island. And of course those jays -- why they don't cross the <1 mile from Orcas to San Juan is unfathomable to me!

All best,

Thor Hanson