pyow - What does it mean?

'pyow' hits on the web

(en-noun)

An alarm call made by the putty-nosed monkey and others, usually a warning that other animals are lurking nearby.

* 1977 , Smithsonian contributions to zoology

Sometimes, however, the adult male rejoined the group after emitting "Pyows " and moved with the others in quite a different direction.

* 1990 , Mark A Berkley, William C Stebbins, Comparative Perception: Basic mechanisms

Interestingly, the blue monkey's boom and pyow calls are both long-distance signals (Brown, 1989), yet the two calls differ...

* 1991 , Richard Estes, The behavior guide to African mammals

For instance, the bark of a spot-nose and pyow of a blue monkey sound very similar (4).

* 1993 , American Psychological Association, Psychological abstracts

Analysis of pyows made by a recognizable male over 10 yrs...

* 2007 , National Geographic Society, The National Geographic magazine

Male putty-nosed monkeys in Nigeria have been observed stringing together calls of pyow and hack.