Do rove beetles eat dead rodents?

i know rove beetles such as the devils coach horse will eat all kinds of insects, but i saw something kind of odd today. it was 100 degrees outside and one of the voles in the yard died. found it on it's back. there were two beetles trying to go up it's nose, which was kind of funny because they were too big and kept getting stuck. i dont have a picture, but they look exactly like devil's coach horses, only they are 1/8th of the size. i was wondering if they were a similar species?

i live near seattle washington