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It is Friday evening at half past seven, but rather than heading to the pub or watching a film, I've taken a train to a market town in Wiltshire to meet up with local helpers from a amphibian rescue group. These committed people give up their nights to safeguard the local toad population.

A Worrying Drop in Population

The common toad is becoming increasingly uncommon. A latest study led by an wildlife conservation group revealed that the UK toad population have dropped by half since the mid-1980s. Seeing a creature that has been a stalwart of the British countryside in decline is labeled "worrying" by researchers. Toads "don't need very particular environments" and "should be able to live successfully in most of habitats in Britain," meaning if even they are not managing to survive, "it indicates that things are not as they should be."

Since 1985, Britain's toad numbers have nearly been cut in half

The Danger from Traffic

Though the research didn't cover the causes for the decline, traffic certainly plays a part. Calculations indicate that 20 tons of toads are killed on British roads every year – that is, hundreds of thousands. Unlike frogs, which might be content to mate "with just a bucket of water," toads prefer big bodies of water. Their capacity to stay out of water for more time than frogs means they can journey farther to reach them – often hundreds of metres. They usually stick to their traditional paths – it's common for mature amphibians to return to their natal pond to mate.

Breeding Habits

Appropriately enough, the initial amphibians begin their quest for a partner around February 14th, but others travel as far as April, waiting until it gets night and moving after sunset. During that time, toads begin migrating from where they have been hibernating "almost simultaneously."

One volunteer, who was raised in the region and has been working to save its toad population since he was a boy, notes that "They've got just one focus: to go and have an orgy." If their route happens to a road, they could be killed by traffic, and that mating period would be lost – preventing a new generation of toads from being produced.

Rescue Groups Across the UK

Seeing many of toad carcasses on nearby streets "inherently strikes a chord with people," and has led to the creation of rescue teams throughout the UK – 274 groups are officially listed with a national initiative. These groups collect toads and carry them across roads in containers, as well as counting the number of toads they find and advocating for other protection measures, such as road closures and amphibian passages.

Volunteers tend to operate during the migration season, when amphibian movements are more regular. However, this implies they can overlook numbers of toadlets, which, having been spawn and then juveniles, exit their water habitats over an unpredictable schedule in late summer. Because of their small stature – just a couple of cm wide – "they are destroyed by car traffic." And as being run over "essentially crushes them," it's harder to get data on them. At least when adult toads are lost, their carcasses can be counted.

Year-Round Work

Unlike most patrols, a specific volunteer group, who are in their eighth season of functioning, go out throughout the year – not nightly, but whenever conditions are warm and wet, or if a member has posted about a toad sighting in their group chat. When I request to accompany them on duty, they concede it is "not ideal conditions" – toad hibernation season has begun and it's been a arid period – but a few of the helpers gamely agree to walk up and down their route with me and see what we can find. "Should anyone can locate any toads tonight, that pair will spot one," says the group coordinator, indicating her 14-year-old son and the longtime volunteer. After for two hours without a glimpse of any amphibians, and now they have climbed over a barbed wire fence to check under some wood.

Family Participation

The mother and son became part of the group a year and a half ago. The teenager adores all things wildlife and has an ambition to become a environmentalist, so his mother started to search for things they could do together to help local wildlife. Now she loves it as much as he does, the 41-year-old entrepreneur tells me – so when the team was seeking a fresh coordinator lately, she volunteered for the role.

The teenager, too, has played an important role in the organization. A video he created, imploring the local council to close a road through a nature reserve during migration season, influenced the outcome the team's way. After a year of lobbying, the authority approved an "restricted access" restriction between evening and morning from late winter through to spring. Most drivers duly avoided the route.

Other Wildlife and Difficulties

A few cars go by when I'm out on duty and we find some victims as a result – no amphibians, but three squashed newts. We spot one living newt as well, and the youngster is particularly pleased to see a harvestman, which dances in his hands. Yet despite the team's best efforts to show me a toad, the native community has clearly gone dormant for the colder months. It appears that I couldn't have found any better success elsewhere in the nation – all the patrol groups I contact explain that it's near-impossible at this time of year.

This team anticipates assisting around ten thousand mature toads over the street

One email I receive from another volunteer, who has generously made the effort to look for toads in a noted location, thought to be the biggest tracked toad population in the UK, arrives in my inbox with the title: "None found." However, in late winter, he tells me, the team plans to assist around ten thousand mature amphibians across the road.

Effectiveness and Limitations

How much of a difference can these groups truly achieve? "The reality that people are performing this consistently on cold, damp and unpleasant late nights is remarkable," says an researcher. "That's something that very much deserves recognition." However, while rescue teams are able to slow the decline, they can't stop it completely – not least because vehicles is not the only threat.

Other Dangers

The climate crisis has meant extended spells of dry weather, which cause the wrong conditions for some of the animals that toads eat, such as worms and slugs, while higher water temperatures have caused an increase of toxic plants, which can be harmful to toads. Milder winters also lead toads to emerge from their hibernation more often, disrupting the resource preservation crucial to their existence. Habitat destruction – particularly the disappearance of big water bodies – is an additional threat.

Researchers are "often concerned about overemphasizing practical benefits on biodiversity," however "It's important in just having these animals around." But toads play an significant part in the food chain, consuming almost any invertebrates or small animals they can swallow and in turn sustaining a variety of predators, such as hedgehogs and otters. Improving conditions for toads – ie building water habitats, protecting forests and installing toad tunnels – "we'll improve them for a wide range of additional wildlife."

Historical Significance

An additional motive to work to preserve toads around is their "historical significance," notes an specialist. Legends and tales around toads date back {centuries|hundred