I just can't believe the
At least it seems flyers are a favorite of rehabilitators including Cindy Page and she will be eventually releasing these squirrels on her beautiful farm near Delphi Falls. Thank you Cindy and all the other dedicated people who do this kind of thing.
As for the attic, I don't think the squirrels are showing up in the traps because the they can no longer get out. I'm embarrassed to admit it but I think I finally figured out the most obvious entry point yesterday.
I had been focused on the driveway end of the house because of the dilapidated chimney. I knew the screen on the vent next to it had rusted away but the chimney ran inside the house and there wasn't purchase for critters to get to that vent. I completely overlooked the fact that the situation at the other end is an entirely different matter.
Unfortunately previous owners built a simple but useful closet at the other end of the attic and in doing so they eliminated human access to the two vents on either side of the fireplace chimney, the chimney that runs on the outside of the house giving the flyers an excellent climbing surface. It's one of those features of, as people often point out, an Amityville Horror House.