I am curious about the history of "owly" to mean irritable, grumpy, or uncooperative.
The Word Detective explains (but doesn't substantiate) that the association derives from the fact that many owls have tufts of feathers above their eyes which resemble the furrowed brow of a grumpy old man. Seems a bit specious to me, particularly since I thought we associated owls primarily with wisdom.
Also: is this usage – as a colleague insists – truly limited to northeastern US and eastern Canada?
Best Answer
It is actually related to how owls look. They look grumpy! (at least most of them).
There is a strong evidence that it might be originated from Nova Scotia or around that region in colloquial usage:
The Word Detective also talks about the origin of this term based on a question asked by a Nova Scotian whose mother called her and her sister "owly" when they were in irritable moods. It also relates the term to owl's appearance:
An older dialectal dictionary gives the meaning as stupid and tired for owly; and sleepy and stupid for owlish. The meaning might have expanded in time or this usage might be unrelated and archaic in British English. All the three dictionaries below say that owly is a word in Suffolk dialect.