My cornish hen who's not quite a year, has been opening her mouth really wide as if she's yawning, sometimes she'll shake her head when she does it. She does it basically all day everyday. It's almost as if she's gagging. It's been going on for about three weeks. I tried to look down her throat, of course she wasn't cooperating very well, but I didn't really see anything. So I don't know if it's gape worm. She acts okay, and eats well. And today I found a light brown/tan bug on her. Very tiny. It almost looked like it had wings..but I dunno. I couldn't smash it between fingers either. Any help or advice on how to treat her would be wonderful. Thank you so much.