My midwife was British and had lived in Canada for quite some time. I don't know enough of the British midwife profession to know the differences-but they do a great deal here. It has been a growing area-leaps and bounds. Definitely you could find work here in your profession!
Ministry of Citizenship and Immigration(ONtario)-Accessing the profession:
Access to the midwifery profession in Ontario
Midwives Association of BC(check the links for Ontario and other governing bodies):
http://www.bcmidwives.com/links.htm
Canadian Association of Midwives:
http:// Canadian Association of Midwives - Association canadienne des sages-femmes
You can check other provinces too.