They "moved with the seasons" in the sense that they had a pasture rotation that continued unchanged from year to year, and that depended on commons. Just like the Swiss, in short. Clearly James should have invaded Switzerland.
In the sixteenth and seventeenth centuries it was usual for all the people of a village or townland, after putting down the crops in spring, to migrate to the uplands with their families and cattle, living there in temporary settlements during the summer, and returning to their homes in the beginning of autumn in time to gather in the crops. An upland settlement of this kind was called a buaile [booley]: and the custom—which descended from early times—was known as booleying by Anglo-Irish writers, several of whom have described it.
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Date: 2014-07-17 12:23 am (UTC)http://www.libraryireland.com/SocialHistoryAncientIreland/III-XIX-4.php
In the sixteenth and seventeenth centuries it was usual for all the people of a village or townland, after putting down the crops in spring, to migrate to the uplands with their families and cattle, living there in temporary settlements during the summer, and returning to their homes in the beginning of autumn in time to gather in the crops. An upland settlement of this kind was called a buaile [booley]: and the custom—which descended from early times—was known as booleying by Anglo-Irish writers, several of whom have described it.