Sprained wings followed by sudden lethargy

[Cheetah Chicks]

As they seem to be living in an appartment, how much time do they spend outside able to get some natural sunlight?

https://www.msdvetmanual.com/poultr...ement-poultry/vitamin-deficiencies-in-poultry

No, they were born in a house with large garden. Her parents were raised in an apartment