Hi Zaina,
There is no way to tell their sex without having a DNA test run. A Vet can pull the blood and send the tests off for you. If you bought this pair as a male and female, and they didn’t come with DNA certificates, then you have no way of knowing if they really are male and female, or if you have 2 males or 2 females. Some people think you can tell by how much space is between their pelvic bones, but this is nothing but a guess based on myth. Males can have a very wide space and some females have almost no space. The pelvic space will adjust to allow egg laying when the time comes – a wide pelvic space is simply a bird that is more relaxed being examined. If one of your birds lays an egg, then you know she is female, but that doesn’t mean the other bird is a male since females can lay eggs with or without a male.
Thank you for asking Lafeber,
Brenda