Answer:
Well I'd say to choose fish and humans,
Explanation:
Because since the birds (which are most likely the seagulls) are dying from choking on plastic, the fish must be eating the plastic too since birds eat fish, which would probably cause fish population to decline as well since not all the fish will survive after eating plastic. Also us humans eat fish as well so if we were to consume fish that have eaten plastic that could cause major health issues to who ever eats them.