Today, when I went out to feed my chickens, my young pullet was acting strange. She (I think a Brahma bantam) was sluggish and quiet. I took her out of the coop and found she had a piece of straw stuck in her throat, but when I tugged on it, it wouldn't budge. It seemed to give her difficulty, though. So I sat with her, giving her feed and water (though she didn't touch the water), and after a few minutes she starting shaking violently like a wet dog, and the feed in her crop spewed out. It was still solid, because she'd consumed it only minutes earlier. After she spit up the feed, I was able to pull the straw out. But even without it she continued to throw up every ten minutes or so, after consuming feed. She's weak and sluggish and not keeping her food down. Does anyone know what's wrong with her?