I'm not sure what kind of tree it is but it looks pretty much like one I have in my yard. I see you are in Canada and I am in South Carolina, but I suppose it could be a close relative to the one I have. Mine is about 25 years old and is a fairly large tree now. It was nothing but a sprout when I transplanted it by accident along with a flowering bush. The bush is long gone but the tree is going strong and doing a nice job of shading my pond from the morning sun. It is an attractive tree and has no annoying droppings until fall when it drops all its leaves. I hope this helps.