Here's my question: How big does a hole need to be for a chicken to stick its head into?? I LOVE diy chicken stuff. (As long as its not MORE complicated or inconvenient.) I settled on a 90° pvc pipe into a bucket of feeder....BUT a 2" pvc is all i could do. (My biggest drill bit is two inches, the available pvc is two inches..) Do i need a larger/ 3" pvc piece eventually? I have welsumer, sapphire gem and Americana breeds. They are ten weeks, so they have some growing yet. I leave for vacation soon for the first time since chicks and this is just one more thing to be anxious over.