I still think it might be too early to tell... I'm new at this, but I'm getting girl vibes from Chipmunk.
*I have an EE that looks exactly like Chipmunk - we named her Chipper.
I had a GLW that did almost the same thing, opened its mouth and stretched its neck like it was trying to crow.
Well, about 4 weeks later (10 weeks old) I'm positive that little GLW is a girl. So there is hope...