dung beetle vs skua

Any of the true dung beetles of subfamily Scarabaeinae. 

Any of the beetle of the family Scarabaeidae (scarab beetles), especially of the subfamilies Scarabaeinae and Aphodiinae, noted for rolling dung into balls for use as food or as brooding chambers. 

Any of various predatory seabirds of the family Stercorariidae that often chase other seabirds to steal their catches.