Which parts of Canada are these toads from? I am from Ontario and know only of American toads, I know that Fowler's are found near the border of the US(Michigan) and Canada. I know that Bufo americanus and Bufo fowleri are closely related and they do cross breed with each other. All my Bufo americanus that I have were collected at different locations. All are very similar however I did have a male that was solid olive green and very noisy lol

Those are awesome pictures, I love all Bufonid toads as well, I wish I had the time to collect them from other parts of Canada and the US.