Changing colours

I was so disappointed a few days ago when I went to Bowness Park to see if the small, (possibly hybrid) Silver Maple tree had turned red yet. We don't have the glorious reds of fall here in Calgary, but I was told about this single tree last year and managed to get a few photos of the vivid red leaves. However, this fall, almost every leaf is badly damaged, plus they had not yet reached full colour. These were about the only two leaves fit to be photographed : (