I'm having an issue with one of my coturnix quail. His beak has grown very long indeed, both the top and bottom parts, and I'm not quite sure how to fix it. Anyone want to tell me how to trim his beak back to a more normal length? I have several different toenail clippers for critters I could use, I have a PediPaws that I could use to sand away the excess beak, and other things I'm sure. I just don't want to hurt him or cause him damage so I could use some advice dealing with it, as this is the first time I've had to take off this much beak on any of my critters.
Here's a photo, though I think it might be even longer than this now:
Also, is there anything I can stick in the quail pen to make it so their beaks stay a more normal length? I don't mind trimming beaks if I need to periodically, but if it can be avoided of course that's preferable.
Here's a photo, though I think it might be even longer than this now:

Also, is there anything I can stick in the quail pen to make it so their beaks stay a more normal length? I don't mind trimming beaks if I need to periodically, but if it can be avoided of course that's preferable.