All three are pullets. Did you just get them? They may still have sperm from a rooster if you just got them. They don't need to be around a rooster everyday as the sperm can last a few days.
Can you post a picture of this? There may be an underlying issue.So the bullseye doesn't mean fertile? The only reason I started looking was because I went to mix my eggs together and it looked like normal yellow but was red on the inside and I got freaked out a little lol
Do they have roosters?They were sneaking out for a while before I could finally fully secure them in. We have other chickens in the neighborhood but they haven't gotten out for almost a month so I'm so confused lol