Gender Help

[Hotdog]

Can someone tell me if they are boys or girls?
I was told Hotdog was a boy and Layla was a girl is that correct?
Sprite and Milky I'm not sure about.

 

[Rozalka]

Sprite and Milky are boys

 

[EllenD]

All of the birds in the first two photos are boys, so the first 3, and then Layla is the only girl...

Hotdog is definitely a boy, he has a pink cere...The two in the middle are boys, they have solid blue ceres. Layla is a girl, as she has a blue cere with white rings around her nares/nostrils.