Looking For Birth Brother 70/71

I am looking for my brother who was born at the Grace Maternity Hospital in Halifax, NS. His birthname was Darren Micheal. This would of been the middle of October, 1970 or 1971. Birth mother's name was Catherine Ann MacMillan and birthfather's name was Donald William MacKenzie both from Cape Breton, NS. Any info please email me. Thanks mackenzie_kelly@hotmail.com