Sprite Problems

Hi. My name is Elias, but I often go under the name as Maczen. I’ve been working in the Unreal Engine for about 2 months now and I have to say it is the greatest thing ever. However, I am having a problem when it comes to 2d sprites. I have made a bird-like creature and when it flaps its wings, the whole character moves up when the tip of the wings move below its lowest point. Can anyone tell me how to fix this?