You tried your best, and it's very good to hear that you did!
Unfortunately, baby squirrels are soooo tiny and their little systems
just can't handle much of anything. Nature is best of course. They
might have been already too cold when you found them.
I wouldn't use the heating pad or lamp, especially if you are going
to transport where would you then plug it in? But if you have a
hot water bottle, I might try that, with water not too unbearably hot.
And wrap it in a towel.
And don't give up. You may not be able to make a difference in every
case, but it will be glorious when the day comes that you make a
difference in even ONE case!!
