I can see that it was a Mallard duck, by the size and the orange ring where the feet were.
For pretty much and duck, 135* internal temp is when it should be removed from the heat and rested on the cutting board until it hits 140* to 145*. Duck is best when it is cooked rare to med rare. It should be bright pink, not bloody, unless you are into that. On the next one, try out.
I bet it was still good though, I love duck.