Can you wait until the leaves have had a week or two of 50 degree temperature? That gives the butterfly eggs/caterpillars, and insects a chance to emerge. Those cats and larvae feed a lot of baby birds in spring.With the 40-50s and close to 60 temps they are "advertising" on the news, a lot of things should thaw out this week. I hope.
I'll be stabbing the pitchfork into the compost pile today, to see how it's thawing out. Really want to get the "done" pile moved so that I can start a new one with the winter poop. I'll be mixing in lots of raked up leaves, because it's just about all poop. The critters have taken most of the kitchen scraps I've added.
I haven't checked my compost piles yet. I'm sure none of them are workable yet. Maybe I can try to work them this week. But the way it is currently snowing I might have to plow a path just to get near them. A good 1/2 inch has fallen in the past half-hour. Crazy Michigan weather!