
Originally Posted by
Herpin Man
If they were mine, I would release them. The sooner the better. It is warm enough now. Find the nearest suitable wetland, one with lots of vegetation around, and release them there.
They may not feed again before hibernation, but if they go straight to hibernation, they should still have enough energy to sustain them. Gray treefrogs are one of the few amphibians cold-tolerant enough to hibernate near the surface of the ground, where they survive freezing by producing an anti-freeze in the cells. That does not mean that they are immune to a sudden cold snap, though.
That is what I would do.
Your other option is to attempt to house and feed all of those hungry little mouths until spring.