I went for a hike today along the Etobicoke Creek Valley through Lester B. Pearson Airport. I saw a herd of Northern White Tailed Deer. I had difficulty counting as the Northern White Tailed Deer were running. There was definetely 10 Northern White Tailed Deer and I believe there was at least 1 mabye 2 more Northern White Tailed Deer in the herd but not bigger than this.