Brush-tailed

"Coursing? What, with those long-legged, brush-tailed brutes, like a fox upon stilts, which the prefect cozened you into buying?"

Nothing, only that it was restless and sticking its claws in the carpet to drag them out again, and apparently anxious to get out of the house - setting up its fur and looking brush-tailed, wild-eyed, and staring.