I'd be spending lots and lots of time with him. Walk him , play with him, groom him and feed him.
You need to develop a great relationship with this pup.
He needs exercise, both physical and mental.
Just letting him out in the yard is not exercise.
IMHO, he sounds bored.
Good dogs don't come that way.
I wouldn't put a bark collar on him until he settles into the family and has a strong bond with you.
If he's barking too much outside, let him inside.
Nothing is as simple as it seems or as complicated as we make it~
Attitude is everything -- Pick a good one!
Sofie AKA Ussina vom Haus Brezel
Jack von Jagenstadt
Tatty - Burmese bad cat