It will be under the Eire section. Or failing that check out truehistory.netne.net .
The reason I don't belive they are huts is a) many occupy hollows or have dished interiors which would effectively mean the occupants would be living in ponds during heavy rain. b) many have sloping floors. People tend to prefer living on level floors c) there is little or no evidence of the hearths or postholes commonly associated with human habitation. I don't know what they are, but after researching similar landscapes for over 10 years I'm of the firm opinion that they are most definately not huts.