Its ok first year eggs are a blessing when there fertile ... 2nd year eggs from true adults. are well a bigger blessing... So happy for you! Deep breath first year eggs dont always make full turm so dont get discouraged remember there still fine tuning and teenagers. But you now know there girls. YaaaWell that settles it...back to basics. Since there is no way I will visually inspect goose private parts and I'm not going to send off for a blood feather test...I will be 100% certain that I have a female goose when I find an egg!!!!!
I now do a quick wellness check of the geese in the morning to identify problems early. Had a problem with toe sores the other month. I thought one of the geese was being mean when it was biting feet of other geese in the kiddie pool until I caught that same goose biting its own foot under water. Went through a month of foot baths, covering with antibiotic cream, wrapping the foot every night, even administering oral antibiotics when the sores were really infected. Thankfully, they are better and they have moved on from biting toes. It would have been a lot easier if I caught that problem earlier.
It is amazing what trouble they can get into.