The 23-year-old, who is from Cookstown and has made 64 appearances for Ireland, plies his trade in England for Beeston and is not alone in making such a decision.
Iain Lewers and Mark Gleghorn have both switched allegiances, the former going on to play for Britain at the London 2012 Olympics, while Ian Sloan is following suit with him.
Ames and Sloan, who is a student at Loughborough University and has 17 caps for Ireland, face a three-year wait to become eligible to play for England and Great Britain.
But for Ames it will be more than worth the wait, revealing ambitions of playing not just at the Olympics but also at the World Cup and Champions Trophy will keep his patience going.
"I feel making this decision will give me the best chance and opportunity to achieve my goals," said Ames. "The Olympics is a high ambition of mine, not just to play in, but to also challenge for medals.
"It is also my ambition to play in more high-level competitions such as the World Cup, Champions Trophy and the Commonwealth Games and in order to give myself this chance, now is the best time to declare for England.
"It may seem a very selfish move but unfortunately competing at international level doesn't last too long in a player's life time.
"So to have more of an opportunity to compete at these high-level events would give me a sense of accomplishment in what I want to achieve in my short hockey career.
"I do not want to finish my career regretting not giving myself the best opportunity to play hockey at the highest level possible."