quail behavior

I hatched these babies 6 days ago and since they hatched one of the chicks has been randomly making this weird motion. It stands there and closes its eyes and throws its head back. It opens its mouth like it’s chirping but no sounds come out. It does that for a while and then stops shakes and...

My chicks has a crop well I think it does. Every time I feed it it grows like a balloon. We don't feed it for a while so it goes then when we feed it, balloon. Cycle never ends. We give a massive dish of water which I see it drinking very regularly. I feed my chicks egg yolk. It's 10 days old. Hell?

So my first hatch 4/22 of quail have reached crowing age. I’m wondering, do they all sort of reach crowing age at once? Or is it sort of more specific to the bird? I sat and watched them a bunch today and there was only one crowing, and I’ve been hearing his crow for a couple days now. He’s also...

Just a couple of quick questions, more out of curiosity than anything. I have noticed that my celadon babies are growing at a much slower rate than my non-Celadon quail did. They eat less, drink less, and are smaller. I'm wondering if this is going to make it hard to integrate them with my...