u/jsvics

This is my budgie Piña, I'm unsure whether they are female or male because the man who gave me them didn't say.

I'm worried about them. They're constantly sitting as shown in the photo, with a line under their belly. None of my other budgies do/have this.

They also have their wings propped slightly open as so, and I'm extremely worried. I wish I could take them to a vet, but I'm sixteen and my parents aren't listening to my worries.

Does anyone have any idea what it could be?