I want to know that if my father was born in 1963, and was adopted by US citizens, and received his US citizenship in 1967, that if this would affect me trying to obtain my canadian citizenship by decent because of some law that if Canadians VOLENTERELY obtained another nations citezenship (before 02/14/1977) yeild s giving up their canadian citizenship. However he was born in canada. I could use some knowledge on how I could predict this outcome.