zone 5

Hi there , fairly new to bonsai and I have a couple questions here. I wanted to know what type of tree this was ? Secondly, I was wondering if its too late in the season for an air layer ? I live close to Ottawa Canada, witch is a Zone 5. So I was wondering if it was too late in the summer to...

Not sure if this would be useful to everyone but sometimes I read a thread and realize it’s incredible information only to find out it’s for a different growing zone. Would it be worth while to have a forum section by zones? Then if you search in there you know all information and tips would be...