Male or female?

[Tracey Bowers]

Hi everyone please can you tell me if my new Grey opaline Exhibition Budgie is male or female? It’s 10-12 weeks old & was sold to me as a cock bird, but my friend thinks it’s female which would explain why it’s biting.
Thanks

Tracey

 

[Milestone]

Male

 

[Monica]

Ditto. Male.