A birdwatching session specifically focused on seeing owls, typically done at night. I took my two older kids on an owl prowl last weekend, and we all had a fantastic experience! I know the nature reserve hosts nighttime owl prowls throughout the summer and into early Fall.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
n. a nighttime session of owl watching. (Bird watchers humor.) We went on an owl-prowl last night and spotted a spotted owl. It was a barn owl, but we spotted it.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.