[Misstiel]

Based on the grey that I had at 7.5 months old, I would say yours is a female, but it's still too early to tell so I'd wait and see just to make sure. By 1 year old, you should know for sure though. You could always try wingspot sex it if you'd like. Sometimes it is very obvious, and other times it can be hard to tell so it's up to you, but that's an option.

 

[Misstiel]

Thank you! Yours is very adorable, too! Just look at the underside of the wings. If the spots are along the whole length of the wing, it should be a female. If the spots are only halfway on the wings (farthest feathers from the body), it should be a male. If you’re willing to send pictures of the underside of his/her wings, I could try determine what he/she is for you.

 

[Misstiel]

Okay, sounds good. If it's too much of a hassle, you don't have to, then. I don't want to cause her to hate you for touching her wings.

 

[Misstiel]

Okay, so based on the amount of spots on the wing, it would appear to be a male. Although, in saying that, I had a 5 week old DNA'd female grey cockatiel that appeared to be a male due to her wing spots. I don't know if you've read Susanne Russo's book, but it's helped me out so much. I'll insert a few screenshots I took from the book so you know what I'm talking about. The first four pictures are of the 5-week old cockatiel that I had, and the last four are of the screenshots. I hope that helps you to determine what yours is! 😊

 

[Misstiel]

Yes, I would definitely say she is a female. At her age, if she were a male, she would have been molting in her solid grey tail feathers, and she should have splotchy yellow feathers on her face. Since she doesn't, my guess is she is a female. Also, I had another DNA'd female grey cockatiel (different bird from the pictures above) who had more yellow on her face than her DNA'd brother. The first two pictures are the male and the last two are the female. Hopefully, that will help to show the difference of molting face feathers (the male in the first pictures I showed) from just the normal yellow feathers on a face (not molting). 😉 😊

 

[Misstiel]

You’re very much welcome! 😊. I actually breed cockatiels, and they usually go to their new homes around 2 to 3 months old so I don’t know their behaviours at that age, unfortunately. That brother and sister did have different characters though. The male was more independent and not as cuddly whereas the female was so sweet. I could rub her head, and she even fell asleep in my hand when she was young. 🥰

 

[Misstiel]

Oh gosh this is so adorable!!! Eve is exactly this way. She so cuddly and demands for scritches 24/7. She snuggles in my neck and naps everyday and wants me to rub her head always! I’ve heard Females have a more affectionate personality than males so I am assuming it is indeed a female. my brother has a 8 month old male and he is a complete different personality. He’s not so affectionate but likes scritches now then and is also super loud unlike Eve. That’s what made me question if behaviour can determine their gender in early stages. I think it does, still not sure. I am assuming her to be a female for now haha. Also, I forgot to mention, she tends make this small squeak sounds when I have my hand over her or back. I have a video of her doing that I’ll share that. Maybe that is a female behaviour too??

I think behaviour can play a role in determining their gender but not all the time. I’ve had very vocal females and very quiet males so it’s hit or miss. That squeaking sound could possibly be her wanting to mate. If she’s crouching down when you pet her back, that’s most likely it and I wouldn’t pet her back then because it might encourage her to want to mate. By what you’ve all said, I’m fairly certain Eve is a female. 😊

 

[Misstiel]

Yeah, I’ve heard the mating behavior and I don’t encourage it at all. It was when I was petting her head and stroking her because of which I accidentally pet her back, which I avoid. I thought about it being a mating behaviour but then considering her age, isn’t it too early for her to show this behaviour?

No, I've had babies make the peeping sound and crouching down when they're even younger than 6 months so it's very possible that's what she was doing.