- And got the T-shirt
Moving hay around isn't going to do much, if anything, to help them adjust. Here's the bible on pig introductions: http://guinea-pigs.livejournal.com/3002707.html
BUT, how large is your cage? No pet store cage is large enough for two pigs, much less two boars. They'll need about 12 square feet if they're going to have room enough to live together peaceably.
- Thanks for the Memories
Your older pig may simply be excited to smell a new pig after the loss of his buddy. I wouldn't worry about the wheeking. When I first introduced my old boars Steve and Jules, Steve was really persistent in trying to find Jules (who was in quarantine). He *heard* someone out there, but wanted to see him. They got along very well and were introduced as adults. I'd think positive about your baby and the adolescent boar.