Hi, this is my adult lutino named Sherbet. I know lutinos are hard to sex and, through the younger months, I was convinced he was a boy. The cere was showing a lot of blue. Now, from the photos, you can see the cere is completely brown. So I'm asking all you experts to help me guess the sex. I will add that Sherbet acts VERY much like a male, showing off and puffing up his chest. Very friendly with my other males. Thank you for your help I'm advance.
No question about it, she is a beautiful hen. ^^ As for the male characteristics, it doesn't matter what gender; both can sing, puff up and show off. It all depends on the budgie because each one has a unique personality.
That is why it's never accurate to determine a budgies gender by behavior! Some males are quiet and reserved, while some females are loud, vocal and outgoing. It differs from bird to bird.
Hen in brown cere should look crusty and not a smooth one like Sherbet. My answer is a male in hormone disorder. To confirm sex, pelvic bones around the vent area should be jointed for a male, and for a hen, pelvic bones should have a gap when the left pelvic bone and the right pelvic bone meets. A diificult task to feel the pelvic bones when one is not experienced to handle birds.
I have one other female, Ovo, and Sherbet seems to 'flirt' with her the way a male does. Ovo has fought viciously with hens in the past, but she just seems to 'shoo' Sherbet away the same as the other males.
It all depends on the personality of the bird! ^^ It's not impossible for two females to get along.
When you also mentioned that Sherbet had a lot of blue in her cere when she was younger also leads me to believe she is female. A male lutino will have a solid pink/purple cere for their entire lives, with no traces of blue in it what so ever. A female lutino will have light blue ceres that turn tan/brown when in breeding condition.