Sapphire Moon
Jogging around the block
Ditto Dana's post. Two of my females do the same. I hope this is all it is. Mine make a weird noise too. I need to get me some of the fake eggs. Hopefully it will slow down the episodes.I'm glad your bird is ok KatyNow I'm going to tell you something yucky, my Sydney tiel' has a flat perch and she also hunches forward on the edge with her tail in the air. In our case it's hormonal. See Sydney used to masturbate all over certain toys and then lay eggs. I took away "boyfriend" after "boyfriend" (the last one was a toy made up of shoelaces). After that she started masturbating on her dowel perches, arg. It was always the same one, the top perch. So I got rid of that and put flat shelf perches. And that stopped her for a quite a bit. But now when she is hormonal she will hunch forward like you described and she masturbates that way by letting the breeze from the nearby window blow on her nether-regions. She is a determined little stinker. This year she laid eggs from Memorial Day to the end of July with breaks in between. I've tried everything, more sleep for her, darkness, rearranging cage, etc etc. Right now she is molting and has zero interest in eggs, but if I get one more clutch of eggs before next spring, we are off to the vet for shots to hopefully stop the eggs. I have the fake eggs and whenever she looks nesty, goes for cuttelbone, etc I put the 3 eggs in there hoping she will think she already has enough eggs so she can quit giving me heart palpitations. And that's my dirty bird.
the real question now is: what will our girlies do when they find out we're sharing their fun time secrets with the whole wide Internet?! 
Nature can be so gross sometimes!!!! 