The celebrated song of the skylark and bubbling call of curlew are evocative and welcome sounds of spring, as people explore our wonderful countryside and urban commons again.

Birds like these – whose numbers are in worrying decline – are making their fragile nests on the ground, tucked away safely in long grass.

However, too often, an exuberant or inquisitive pooch, wandering or bounding through grass or heather, easily disturbs wildlife and scares adult birds off nests or tramples eggs. And vulnerable chicks can quickly perish if they are left alone for too long.

The Wildlife Trusts are calling on dog walkers to keep their dogs on short leads to help ground-nesting birds this spring and summer. Whether you’re visiting heathland, fields or urban parks, there are birds nesting on the ground – or just above it – that can be hard to see and are at risk of trampling, disturbance, and harm.

James Herd, Director of Reserves Management at Surrey Wildlife Trust said:

“Dogs off leads can be a real issue for nesting birds on our heathland reserves. When dogs do leave the path and wander through the heather they can, unwittingly, disturb breeding birds as they go. Keeping dogs on leads will also benefit other wildlife that can be harmed or disturbed by enthusiastic pooches, including our native reptiles."

James Brittain-McVey, lead guitarist of The Vamps, dog owner and ambassador for The Wildlife Trusts says:

“I’ve learnt, as a rescue dog owner, the importance of keeping your dog under control at all times. And at this time of year, it’s especially important to remember that we can all play our part in helping birds breed successfully by keeping dogs on short leads in wild places – especially when so many species are having such a hard time.”

James Byrne, landscapes recovery programme manager for The Wildlife Trusts, says:

“Allowing dogs to run wild in nature reserves can be devastating for wildlife, particularly in spring when species are breeding and vulnerable. We’re asking dog walkers to be sensitive by keeping their animals on short leads, sticking to paths, and properly disposing of dog poo. Wildlife is already under enormous pressure – let's all keep dogs in check so as not to make things worse.”

Many people think of birds’ nests as being high up in trees, but a surprising number nest on the ground or just above it, in low bushes. For example:

• Nightjars lay their eggs directly onto the ground in heathlands
• Willow warblers tuck themselves away at the base of trees and bushes in woods and open areas with scattered trees
• Meadow pipits hide their eggs in grassy tussocks on commons and meadows
• Familiar garden birds like dunnocks and blackbirds can nest close to the ground.

The law says that you must keep your dog on a lead no longer than 2 metres between 1^st March and 31^st July, when on any open access land to protect ground-nesting birds. For safety, you should also always keep your dog a lead around grazing animals, although it’s safer to let your dog off if you are chased by cows or horses.

Other benefits of keeping dogs on leads include:

• Lessening the negative impacts of dog poo and urine by reducing it to a smaller area
• Preventing dogs jumping in lakes and rivers – this disturbs aquatic wildlife and the insecticides that are found in dog flea treatments can end up polluting water
• Reducing risks to other animals and people