Got home from watching hockey game around 10pm (sens lost) May 15, 2013. Had to take out the garbage, so I walked across the street to see what recycle box the neighbour's put out. I was walking back to my house, looking east I noticed a number of white objects flying west, I thought at first it was Canadian Geese flying because they are always in a triangle, but then I realized it was night, so I focused in closer and realized it was about 6-7 lights forming a triangle. I wasn't sure if it was one object, but then it turned and veered north and went behind a large tree. All the lights stayed in position so I assume it was one object. I then ran down the street a bit to see if it would appear on the other side of the tree but nothing. If I had to guess, it looked like it was 2-5 miles away, 3500 feet up, but can't be sure. There was a plane directly overhead as well (looked like 30,000 ft.), which I kept looking at to make sure I wasn't seeing things.