Gulls, along with other sea birds, have been falling in numbers. RSPB says the UK's gull population has declined by more than 60% since 1970, with overfishing and climate change among the suspected ...

Lesser black-backed gulls, spending winters on the Texas coast, also look like yellow-legged gulls but have a black rather ...

In this project urban nesting Lesser Black-backed gulls have been fitted with state-of-the ... The optimisation criteria can be used to develop control schemes suitable in path planning for gull-sized ...