Pond frogs - i.d.?

[100Honeybee]

Not far from my house there's a little chocolate shop and outside there's a garden and pond. I go there fairly often in the summer, both for the chocolate and to look at the frogs! I'm just curious what kind they are..?
Here's a picture:

[UncleChester]

Hi there! A picture of the whole frog would help. Also, what state are you in? If you google "frogs of **state name**" you can get a list of your locals to compare with. Or head to AmphibiaWeb: World Map Search and keep clicking until you're down to the state level.

I'll play the odds and say you're most likely you're looking at a bullfrog, Lithobates catesbeianus, or a green frog, Lithobates clamitans, but more info is really needed.