I put on a pinless peeper on my Silkie hen this afternoon because she is a feather plucker/eater. This is my last hope. I love her dearly so I dont want to get rid of her but I dont want bare-bottomed chickens either. I noticed that the peeper fills her nostrils. The "skin" on the top of the nostril was pushed in when the peeper was installed. Is that normal? Also she is opening her mouth frequently simular to yawning. Is this normal? She doesn't appear to be in pain. She never sqwacked, she is eating and drinking. Please let me know if you have experience with this device Thank you!