In order for a work to be protected by copyright, there must be an element of originality, skill and judgment in its creation - more than that required to create (for example) a telephone book. Copyright is created the moment this original work is set in any 'fixed' form, meaning it's outside of the creator's head and accessible in some way (e.g. when it's drawn, written, recorded, saved on the cloud or hard drive, posted online, etc).

In Canada, you don't have to register a work, nor does the word "copyright" nor the symbol "©" need to be added to the work to have protection - though it is a good reminder. A creator may choose to register a work with the Canadian Intellectual Property Office as proof of ownership, but it's not mandatory.