Salt-water mosquitoes have a range of 100 miles and that's making tracking their breeding site difficult.

NPR: Unusual Breed of Mosquitoes Hits Dallas

We arrived on the banks of the Comoue and the spot is idyllic - green, sunny, with the gentle noise of running water, basically the perfect breeding site for black flies.

BBC: Burkina Faso: Beating river blindness by fly-catching

Campaigners have vowed to fight plans to convert an egg laying unit in Lincolnshire into a site for breeding chickens for slaughter.

BBC: Bleasby Moor Against Development group

The first permanent recording of a breeding pair in Norfolk for hundreds of years happened in 2010 at a granary site in North Lynn.

BBC: Norwich Cathedral peregrine falcon lays second egg