Recovering somewhat from his fright, he began to bark at the creature, and ran round and round his milk-pan, WOUF-WOUFing, gurring, growling, like an old dog barking at a wild-cat or a bear.
"The Story of My Boyhood and Youth"
John Muir
Once it seemed to be the step of a deer in shallow water near the camp, then it was the soft footfall of some catlike animal and when Ned raised himself on his elbow to listen to a heavier tread, the "WOUF" of the startled beast told that Bruin had caught the offensive scent of the white man's camp.
"Dick in the Everglades"
A. W. Dimock
