Canada New Citizenship Act Citizenship, Act, Canada, New

fibbi

This is part of it:
在國外出生的加拿大人﹐如在海外生孩子﹐他們的子女仍是加拿大人﹐但第三代不能自動承襲加拿大國籍。

http://www.mingpaovan.com/htm/News/20090417/vap1h.htm

Sounds strange to me. As long as the parents are Canadian, why can't the kids (even born outside) be Canadian?