Can anyone tell me what kinda toad/frog this is???

[ConVexity]

http://www.youtube.com/watch?v=GSa5izE_qek

I seen him in a little swamp on some backroads on the side of the mississippi river

[tgampper]

American bullfrog. It's size, smooth green skin and large tympanum (ear drum) are key features of this species.

[ConVexity]

I wish I could have gotten one of the american bufo's tads lol...
I dont know how to tell the difference in tads... if there's even a way?

and can you tell me if it was full grown?

[tgampper]

The frog in the video appears to be a mature adult. The tadpoles are quite different. Bullfrog on left. American toad on right.