Someone asked this in my Budgie Facebook group - We are confused ourselves so thought I'd ask this wonderful community for some help
"So I have another question. A few days ago the cere changed to a brownish color. Today it’s clearing up and now the cere on one side is blue. She did have an appointment today at the vet that I made 2 weeks ago when I rescued her. The vet checked her out, clipped her nails and trimed her beak and told me that she think its a boy and sometimes male ceres can turn brown as well.
Pics are when her cere turned brown a few days ago, and today. I am so confused, do I have a boy or girl?"
Thank you in advance