Odd head movement. Help.

[RayvaanSexlink]

So I've got this Sex-link black named Rayvann, she's about 4 weeks old now. Lately though she's been doing this weird head movement where she brings her head forward and opens her beak really wide. It usually happens when I blow cool air on her to cool her down. Is this something I should worry about? Is it a sign of irritation? Is it a sign that she will throw up?

 

[N&MSchroeder]

Hi and

Chickens will do this for a couple of reasons. The first, and most obvious, is when they are trying to crow.

Since your chick is a sex-link, it probably isn't this. There has been some discussion on BYC about this being the chick's attempt to adjust her crop, where the recently consumed food is stored. I have seen my chicks do this and I believe that this could be what your chick is doing as well. You might want to search BYC to see if you can find out more information.