Some hams are vocal. Some do it when they're happy some when not so much. But he is still adjusting, 2 days isn't very long to be home. I'm guessing your cage is a good size due to the stuff you have I'm there but what size is it? Some hams bar chew when they're not happy & some chew because they're bored, it's a bit too soon for Patch yet to say what it is but if he is a chewer long term then it needs to be discouraged as they can break there teeth or get sores on their noses. You can try threading some cardboard between the bars if there is area he is focused on but generally I'd say to leave him be for a few more days yet. Is your cage tall if he's climbing? They like climbing but aren't very good at it so if your cage is tall you'll need some stuff to break his fall, at the very least lots of substrate. I'm sure he'll be fine when he settles in though
