Sprite in different aspect ratio

I had been searching about this, and no one asking it. So, can anyone explain how to show sprite in same size on different aspect ratio? I want to make it like a fl*ppy bird aspect ratio, while you play it on 3:4 Portrait, it will show the same size bird sprite like on 10:16 Portrait though in 10:16 the top and bottom show more of background. The image shown is 10: 16.

The image shown is 3: 4. So, can anyone tell me the way so on every android aspect ratio, it can keep the sprite same and cut background if the aspect too high? Any solution?