I was asked to help control the over populated groundhogs on a large field right up the street. Iplan ontrapping them in box traps in order to avoid harming the free-roaming cats and to be able to relocate them instead of shooting them. Would it be possible for the groundhogs to survive if I did this, or would it be better to just finish them off when they're in the trap?

I have also found 4 small sculls (I believe they are groundhog skulls) layinginfront ofdifferent groundhog holes. Could this be young groundhogs that died due to over population?