Manx Care is warning some Noble's Hospital users to take care after a beaked bully began picking on staff and patients.
On Facebook, the organisation says a seagull with a nest of young chicks has been behaving aggressively outside the Day Assessment Treatment Unit and Diabetes Centre.
Manx Care says there's not much it can do because of the bird's protected status - and the MSPCA's advice is to carry an umbrella for protection.
It's asking people in the area to be aware and take care.
Two Manxman crossings called off
New warning for coastal overtopping at high tide
Government wants to re-roof governor's home
EVF to roll out body cameras to all Island stores
Good news for Island's Vinted sellers!
Ferry sailings under threat this week
Mountain Road gritting gets underway
Civic Amenity Site issues statement after former manager admits fraud