Wild birds can breed with my hens? What would the resulting chick look like?If your hens have never had access to a rooster, it's highly unlikely that their eggs will have a bullseye or be fertilized. However, there are some rare cases where an egg may develop a bullseye without being fertilized.
One possible explanation is that some hens can develop reproductive issues that cause them to produce eggs with double yolks, which can sometimes give the appearance of a bullseye. Another possible explanation is that a hormonal imbalance in the hen's reproductive system can cause an egg to develop without being fertilized, resulting in the bullseye appearance.
While it's not common for an unfertilized egg to develop a bullseye, it can happen. However, it's important to note that eggs with bullseyes are usually the result of fertilization, either from a rooster or from contact with rooster sperm. If you're consistently seeing bullseyes in your hen's eggs and you are not breeding chickens, it's possible that a neighbor's rooster is mating with your hens or that wild birds are accessing your hens.