Jizz
The overall impression which a bird gives an observer, enabling an experienced birdwatcher at least to suspect its identity, even if plumage details and other diagnostic features cannot be seen. Jizz consists of a combination of colour, size, shape and movement. The word was invented by the Cheshire ornithologist T. A. Coward.From Peter Weaver's Birdwatcher's Dictionary
Copyright © 1981 by Peter Weaver