My budgie has been regurgitating since May.

[airpirate]

My budgie has been continuously regurgitating since May. He seems ok except his head is caked with junk.
I have bathed him but the stuff is stubborn. Any suggestions on the regurgitation and how to get him to stop?
Also does anyone have a recommendation on how to remove the caked on junk?

[tweetiepiesmom]

That sounds more like he's vomiting rather than regurgitation. There are many reasons why he'd be doing that. I suggest you take him to an avian vet to find the cause. Sorry I can't help with how to clean him.
Good luck.