Conversation so far:
What was the economy like in Gaelic Ireland?
Gaelic Ireland was involved in trade with Britain and mainland Europe from ancient times, and this trade increased over the centuries.
Are there any other interesting aspects about the Gaelic Ireland article besides its economy?
In the Middle Ages the main exports were textiles such as wool and linen while the main imports were luxury items.
What kind of luxury items were the main imports in Gaelic Ireland?
What else did Gaelic Ireland's economy consist of besides import of luxury goods?
Money was seldom used in Gaelic society; instead, goods and services were usually exchanged for other goods and services (barter).
Where did the exchange of goods and services happen at in Gaelic Ireland?
What else happened with Gaelic Ireland's economy besides barter?
The economy was mainly a pastoral one, based on livestock (cows, sheep, pigs, goats, etc.) and their products.
What did the people of Gaelic Ireland do with the livestock items?
Cattle was the main element in the Irish pastoral economy and the main form of wealth, providing milk, butter, cheese, meat, fat, hides, and so forth.
Were there any problems in Gaelic Ireland?
Cattle were a highly mobile form of wealth and economic resource which could be quickly and easily moved to a safer locality in time of war or trouble.

Question: Where did they move to?
Self-contained rewrite: Where did the people of Gaelic Ireland move their cattle to?