Specialties where moving to Canada would be unfeasible due to job market

[medianhorizon]

Immigration and board certification problems aside, which specialties are a big no-no for a realistic chance at practicing in Canada? Which ones have ok/good job markets? 

I’m not going to base my specialty choice off of ability to move to Canada, but just wanted to get a heads up

[1D7]

Orthopedics and cardiac surgery are classically known for tough job markets. If you are in the US, you'd probably be better off there in most if not all surgical specialties.