First, congratulations on catching mom. And YES, returning her to the area she knows is the perfectly correct thing to do for any feral.

Next, congrats on catching baby #4!!

since he/she had more weeks with his wild mom, starting him confined to a cage is the best way to go. Handle him in a towel if necessary. Maybe even Moxie can help to teach him the benefits of being tame.

HA! and I thought I had my hands full.