I've seen the numerous photos of fertile vs infertile eggs online, but my eyes are old and I'm new at this. Was hoping you more experienced chicken folks could help me out. What do you think...fertile or infertile?
Been thinking about this.
Good strong bullseye for sure fertile, but not all mine have a bullseye,
and I've had pretty good development rates tho I don't hatch a ton.
Have seen them look like this with NO cockbird present, so......<shrugs>
There's no guarantee, and you can't see the blastodisc before incubating,
and can't incubate after breaking and seeing the blastodisc,
so we'll never know for sure if this type of blastodisc is truly fertile or not.