I have never partaken in said Sammy the hapless Seagull.
However, there has been many a stranded sailor who has and survived for weeks and months on a diet of fish, seagull and rain water. If there was a partner in the boat who reached room temp then they too might have been on the menu.
During apocalyptic times there are no protected species. You eat what you can kill or take.
So, will I be cooking any soon even if it is roadkill? No, I am comfortable enough in my apocalyptic culinary skills to put that off until needed.