I'm decently sure it's a garter snake, we live in Nova Scotia (eastern canada), I just want to know what kind!

I hope the photos I took aren't too bad. They are truly gigantic so I've linked to them instead!

http://i.imgur.com/lNK8L.jpg - a poorly lit over the top shot

http://i.imgur.com/Cuf81.jpg - a brighter over the top shot

http://i.imgur.com/UNjVa.jpg - a side shot, a little blurry, i'm sorry!

Here's the 10 gallon tank we're keeping him/her in. We've had her for 3 hours and she's already ate! We found her wild, so this is exciting! I'll try to get a bottom shot for gender later, after she digests her meal.

http://i.imgur.com/MyvuG.jpg