We debated the ethics of roost shooting some time back. I agree with jalvja, it is probably illegal (don't know where the tom was taken) and should not be counted as an "official" bird for the Challenge.

As to whether or not shooting a tom off the roost is sporting or not (I would not, personally, do it), suffice it to say that I have learned that I'm not always "in tune" with other hunters' opinions about "sporting" or "ethical" tactics (e.g., I think using a RoboDuck for field shooting mallards in the fall is GREAT, ETHICAL, and SPORTING, others do not agree and think the spinning wing decoy should be banned in the altogether), so I will not pass an ethical or value-based judgment on the matter, except to observe that if it was illegal, by law, then it cannot be condoned.