Two of them! And they could fly, almost.
At least you could scarcely see that they touched the ground.

The mean old things were paying up for the pigs and lambs now.

Through the fence, across the road, straight toward me they came.

Almost red backs, nearly white beneath, long flying tails, beautiful pointed ears, and long tongues, fire red, hanging from their open mouths; their sleek sides pulsing, and that awful din coming through the woods behind them.
One second, the first paused to glance toward either side, and threw back its head to listen.

What it saw, and heard, showed it.