Sheep nomenclature

One of my weird dreams prompts an odd question: Is this a real term?
Part of the dream was visuals of islands somewhere, sheep grazing. BBC sounding narration over the visual  "The larger island has almost 800 wool on it, and the smaller one we can see to the southeast has about 450 wool on it...."  
Does any culture call a sheep a wool?
That just seemed odd....

In Portugal borrego can mean lamb (the animal), lamb (the meat), or fleece, or something fleecy like a blanket.

I've heard this way of speaking in people who speak English as a second language.   I've often wondered if it was a pidgin english way of using the word.

I checked my OED. I saw a reference from 1592 that could be seen as a reference to sheep.  The dictionary itself seemed to think it implied to wool in the conventional sense.  Within context, I felt it could be used similar to the phrase “pork bellies” where in some circles pork bellies referred to bacon and in others the whole animal.