hello there my family has owned an african grey parrot since august 2006 and we recently purchased a yellow collared macaw in august 2007. He used to be a fantastic parrot always cuddling up with me, and very friendly to others, but the last several months he has been very nervous. He/she makes almost like a growling noise (it's non aggressive though, I know this because he will make it and if you make a sudden move he will jump down often cutting and hurting himself, I just can't describe the noise any better) and even recently he seems petrified. I can only think it's because 1) we keep him out on a perch almost 24/7 now and maybe he's stressed out and needs a cage, 2) doesn't feel secure, ties in with the cage issue and maybe I could get it a little "Den" to hide under like some toys I've seen 3) it's jealous/angry/afraid of the new bird and since my family associates with the macaw, us too? Can anyone help us out it's getting to the point where he will at least a couple of times a day jump down from a 4-5' perch and he's starting to get pretty banged up. Any help would be greatly appreciated.