I'm so excited! It's our first incubation (a still air hovabator). Day 20 today and we started hearing cheeping and spied two with holes. Just minutes ago my first little fuzz went to town "unzipping" and was out! I hadn't lined the incubator, but can see where that is a benefit....carefully I stuck in a liner in sections in order to not mess up the temp/humidity too much. The first one has been hatched about 20 minutes and seems to be doing great! Should I keep a liner or not? I don't want it to get tangled up or suffocate. Can that happen? I'm a "newbie peep keeper" here and love any feedback! I have 16 RIR eggs in the bator, one hatched and 4 more with holes (piping?).