You can sex by how the pelvic bones feel apparently, if you can interpret what you're feeling it's very accurate. Right near the vent (on the underside, not back) feel gently, males should have two bones that are close together and a bit pointy feeling, females are meant to have wider spaced bones that aren't pointy. I'm yet to be able to feel this but lots of people swear by it.
Love from Bea, Blinkie, Ozzie, Mickey, Cookie and Bailee xxx
The gland is just above the birds tail. The birds wings cross over the gland ( on the base of the birds back )
It is easy to find but you may have to ruffle a few feathers to see it ( the gland ) Or just keep an eye on your bird when he or she preens you will see the bird drop its wings turn the head towards the top of the tail and puff up a few feathers to expose the gland and the bird extracts a small amount of fat and the bird starts preening.
The bird will also use the head to rub the gland also to help with preening.
I hope this helps
As for sexing a bird I use a wedding ring and a piece of cotton.
if I can get a grip on the OzZMAN to check his & compare to Sharon, that will be awesome, sharons a Pineapple green cheek & Ozzy is a Cinnie split to pineapple, so when I pair the babies up with a future pairs off spring of pineapples & YS that will be a heck of alot cheaper than DNAing every single one.. total Awesomeness! see I just love you all here!! learnin daily ;D