Seagulls are protected under the “Migratory Bird Treaty Act of 1918”. This means that it is illegal to capture, kill, or keep a seagull in your home (unless you have a special permit).
So, no: you cannot go into the Meijer parking lot, yoink a seagull from the flock, and take it home.
This PSA has been brought to you by an argument with my son during a grocery pick-up.
Thank you.
Regular geese with Canadian citizenship enjoy no special protections. Canada geese are protected, though if you’ve ever encountered one, you’d know that the protection is more for you than them.