A seagull is a bird, often seen as a nuisance to coastal communities. Given its maligned role, its name seems apt for reuse.

Seagull

Noun /ˈsiː.ɡʌl/

One who takes advantage of a situation to meet their own ends. An opportunistic thief, a harassing scammer.

From: Seagull the bird, known for thieving food from people and for harassing them in coastal areas.

Example: Did you hear about the seagulls going around lately? They say they’re offering a lawn cutting service, but they’re really just after your money.

Also: Seagulling (verb) – When a seagull harasses and take advantage of someone else