Residents are concerned about the behaviour of aggressive seagulls in Cyncoed.
The gulls have begun building nests ahead of breeding season.
Over the past 10 years, residents said they have had cars damaged and bin bags ripped open.
Complaints have been made to Cardiff Council, but it was unavailable for comment.
Moya Campbell has lived in Coed-y-Llyn for more than 30 years. She attaches plastic bags to her car to stop them from landing on it.
Ms Campbell has said better resources are needed to tackle the birds.
“We need better bags for our recycling,” she said.
“Even if they give us another bin for recycling, that might help.”
Ms Campbell said gull droppings caused hundreds of pounds worth of damage to her car.
All species of gulls are protected under the Wildlife and Countryside Act. This makes it illegal to intentionally injure or kill any gull, or destroy an active nest.
Lib Dem councillor for Cyncoed Bablin Molik said: “The best thing really that we advise as councillors for residents to do is get in touch with the pest control teams and the council.
“It is limited what we can do because they are a protected species, so we must remember that the seagulls shouldn’t be harmed in what action we do.”
A spokesman for the charity RSPB advised making nest sites inaccessible and not dropping litter.
“Those best placed to do this are landfill companies and local authorities, but the behaviour of individuals is also important,” he added.
