A "seagull summit" has been held to help businesses and residents affected by the birds.
The gulls snatch food, nest on rooftops and are an "issue in pretty much every town", East Devon District Council (EDDC) has said.
Businesses and residents are being encouraged to put netting on their roofs and to discourage people from feeding the birds.
The RSPB said people had to "learn to live" with the gulls.
The council said the long hot summer has meant seagulls have been a "particular problem" across the whole district.
Councillor Tom Wright said: "During the summer we've had complaints about aggressive behaviour by seagulls.