One Scottish council says it has plan to try and prevent the birds being a health and safety risk.
A wildlife trust says gull numbers have been in freefall since the 1970s due to habitat loss.
In this project urban nesting Lesser Black-backed gulls have been fitted with state-of-the-art ... The optimisation criteria can be used to develop control schemes suitable in path planning for ...
The site, managed by the trust and owned by Affinity Water, was "a vital roost site for five species of gulls" - including the great black-backed gull, lesser black-backed gull, herring gull ...
A nature reserve in a landlocked county has become a "vital" roosting site for five endangered species of gull. The Herts and Middlesex Wildlife Trust said its Hilfield Park Reservoir Nature ...