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It's a Friday night at 7:30, but instead of going out or watching a film, I've caught a train to a market town in Wiltshire to meet up with local helpers from a amphibian rescue group. These dedicated individuals sacrifice their nights to safeguard the native amphibian community.

An Alarming Drop in Numbers

The Bufo bufo is growing more uncommon. A recent study conducted by an wildlife conservation group showed that the British common toad numbers have almost halved since the mid-1980s. Seeing a creature that has been a stalwart of the British countryside in decline is described as "concerning" by experts. Toads "don't require very specific conditions" and "ought to live quite well in most of areas in the UK," so if even they are not managing to survive, "it kind of suggests that the ecosystem is unbalanced."

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

The Threat from Traffic

Though the research didn't cover the causes for the drop, cars certainly plays a part. Estimates indicate that 20 tons of toads are crushed on UK roads annually – in other words, hundreds of thousands. Unlike frogs, which would probably be content to mate "if you left out a small container," toads favor large ponds. Their capacity to remain away from water for longer than frogs allows they can journey farther to find them – sometimes hundreds of metres. They tend to follow their ancestral migration routes – it's common for adult toads to go back to their natal pond to mate.

Migration Patterns

Fittingly, the initial amphibians start their journey for a mate around Valentine's day, but some move as late as April, waiting until it gets dark and moving after sunset. During that period, toads start moving from wherever they have been overwintering "almost simultaneously."

One volunteer, who grew up in the region and has been trying to protect its amphibians since he was a boy, notes that "Their sole purpose: to go and have an orgy." If their path crosses a street, they could be killed by traffic, and that mating period would never happen – stopping a new generation of toads from being produced.

Rescue Groups Across the United Kingdom

Finding many of toad carcasses on local roads "resonates deeply with people," and has resulted in the formation of rescue teams across the UK – 274 groups are officially listed with a countrywide program. These teams collect toads and transport them over streets in buckets, as well as counting the number of toads they encounter and lobbying for other safety solutions, such as road closures and amphibian passages.

Patrols tend to operate during the breeding period, when toad crossings are frequent. However, this means they can overlook groups of toadlets, which, having been spawn and then juveniles, leave their water habitats over an unpredictable schedule in the end of summer. Because of their size – just a couple of cm wide – "they are destroyed by vehicles." And as being run over "essentially crushes them," it's more difficult to collect information on them. At least when mature amphibians are killed, their remains can be tallied.

Annual Work

In contrast to most patrols, one local team, who are in their eighth year of functioning, go out year-round – not every night, but whenever conditions are damp, or if someone has reported about a toad sighting in their group chat. When I ask to join them on patrol, they concede it is "not a toady night" – toad hibernation season has started and it's been a arid period – but several of the volunteers willingly accept to patrol their route with me and see what we can find. "If anyone can find any toads tonight, that pair will spot one," says the patrol manager, pointing to her 14-year-old son and the experienced member. We've been out for two hours without a single toad sighting, and now they have scaled a wire barrier to inspect beneath some wood.

Community Involvement

The family duo joined the patrol a while back. The youngster loves all things wildlife and has an ambition to become a environmentalist, so his mother started to search for activities they could do jointly to protect local wildlife. Now she loves it as much as he does, the 41-year-old entrepreneur tells me – so when the group was seeking a fresh coordinator recently, she decided to step up.

The youth, too, has played an important role in the organization. A clip he made, imploring the municipal authority to block a road through a protected area during migration season, swung the decision the group's way. After a year of campaigning, the authority agreed to an "restricted access" rule between 5pm and 5am from late winter through to April. The majority of motorists duly avoided the road.

Additional Species and Challenges

Several vehicles go past when I'm out on duty and we discover some casualties as a result – no toads, but several crushed salamanders. We see one living newt as well, and the teenager is particularly pleased to see a harvestman, which dances in his hands. Yet in spite of the group's best efforts to let me see a toad, the local population has obviously gone dormant for the colder months. It appears that I couldn't have found any more luck elsewhere in the country – all the rescue teams I contact explain that it's very difficult at this time of year.

The group expects to help approximately 10,000 adult toads across the road

One email I get from a different helper, who has generously made the effort to check for toads in a noted location, thought to be the largest accurately monitored toad group in the UK, reaches me with the subject line: "No toads." However, in late winter, he informs me, the team plans to assist approximately 10,000 mature amphibians across the road.

Effectiveness and Challenges

What level of impact can these groups truly achieve? "The fact that volunteers are performing this regularly on chilly, wet and miserable evenings is remarkable," notes an expert. "That's something that very much should be celebrated." However, while toad patrols are able to slow the decline, they can't stop it completely – not least because vehicles is not the only threat.

Additional Threats

The global warming has resulted in extended spells of dry weather, which create the poor environment for some of the creatures that toads consume, such as invertebrates, while warmer ponds have caused an increase of blue-green algae, which can be harmful to toads. Milder winters also lead toads to wake up from their hibernation more often, interfering with the energy conservation crucial to their life cycle. Loss of environment – particularly the loss of large ponds – is an additional threat.

Experts are "often concerned about overemphasizing practical benefits on wildlife," but "There is a big value in just having these animals around." But toads do have an significant part in the ecosystem, consuming pretty much any small creatures or small animals they can swallow and in turn sustaining a variety of birds and mammals, such as wildlife. Improving conditions for toads – ie creating more ponds, protecting forests and installing amphibian passages – "we'll improve them for a whole bunch of other species."

Cultural Importance

An additional motive to try to keep toads around is their "important cultural value," adds an specialist. Legends and tales around toads go back {centuries|hundred