If you saw someone shoot it yes, if you just saw a dead grebe and had no knowledge if it died naturally or was shot, no. Just my opinion.I know it's a bigger deal if there's a trophy elk or deer poached and left. I could see something like a swan or a pile of ducks and geese too. But last night I went to one of my spots in Ogden Bay and someone had shot a Grebe and left it. Is something like that supposed to be reported?