If by “Seagull” you mean raw sewage, than no, it’s not edible and it would likely cause you to become violently ill.
But if by “Seagull” you mean seagull, than there’s no reason for the quotation marks.
It’s bleedin’ seabird flavor, innit? ALBATROSS!
I have actually eaten seagull, roasted on hot coals, without any post-meal discomfort and enjoying the culinary experience. Meat is meat, after thorough cooking, IME (maybe 20 different kinds of meat under my belt, incl. fox, crow, squirrel, larvae, viper etc.)
Thanks for posting that. It was “really interesting.” 
Gullible.
I don’t think this seabird is meant to be eaten. It’s not that kind of gull.
How about some albatross?
Better yet! http://youtube.com/watch?v=Z_u7VGiMO0U
I put the quote marks on “Seagull” because it wasn’t a species – probably I should not have since it was grammatically unnecessary.
Also, in general, you can’t use bold or italics in the title of the thread, so quotation marks are an alternative way of showing emphasis.
Are you at all curious if scrambled seagull eggs are edible? 