I am a first time goat owner and took possession of two 4 month old whethers. We released them from their travel crate and bolted into my wooded 4 acre back yard (fenced in). I have caught glimpses of them but can't get near them. I didn't even get to touch them! How am I going to catch them? I wanted them for pets and to eat all the green vegetation they want. Thanks for any suggestions.