The council is to consider introducing laws restricting activities such as entry to the reserve at certain times, including breeding seasons, using radios which might disturb wildlife and deliberate damage or disturbance to the area.

BBC: Cambridge raves 'damaging' reserve wildlife

The weather, the height of tides and levels of human disturbance all have an impact on whether the birds enjoy a successful breeding season.

BBC: A Little Tern protects two of its chicks