I have 7 three week old chicks. I just went down to the brooder to feed and water them. My Wyandotte was sleeping with her head sort of tucked under her neck (like she was trying to put her head under her?) The feeding frenzy commenced.. she didn't seem too interested. So I picked her up, and she starts swinging her head back and forth low against her shest.. like she is trying to pick at her checst, scratch herself w/ her beak? I put her back in the brooder, and she peck at the food once or twice, then tries to tuck her head under her neck and walk away. Then trips over her own head. Gets back up and flutters her wings.. she is acting kid of sleepy/weird.... The others are all fine. Why is she acting weird?