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It is Friday night at half past seven, but instead of going out or watching a film, I've caught a train to a town in Wiltshire to join volunteers from a amphibian rescue group. These dedicated individuals sacrifice their nights to protect the local toad population.

An Alarming Decline in Population

The Bufo bufo is growing more rare. A recent study conducted by an amphibian and reptile charity showed that the British common toad numbers have dropped by half since the mid-1980s. Observing a species that has been a fixture of the UK landscape in decrease is labeled "worrying" by researchers. Toads "don't require very specific conditions" and "should be able to live quite well in the majority of areas in the UK," meaning if even they are struggling to persist, "it indicates that the ecosystem is unbalanced."

The UK toad population has almost halved since 1985

The Threat from Roads

Though the research didn't examine the causes for the drop, cars is a major factor. Estimates indicate that 20 tons of toads are killed on British roads annually – in other words, hundreds of thousands. Unlike frogs, which might be happy to mate "if you left out a bucket of water," toads prefer big bodies of water. Their ability to stay out of water for more time than frogs means they can travel further to reach them – often long distances. They tend to stick to their traditional paths – it's typical for adult toads to return to their natal pond to mate.

Migration Patterns

Appropriately enough, the initial amphibians begin their quest for a mate around February 14th, but some move as late as April, until it gets night and moving after sunset. During that period, toads start moving from where they have been overwintering "all pretty much at the same time."

A local helper, who was raised in the area and has been trying to protect its amphibians since he was a child, notes that "Their sole purpose: to go and mate." If their route crosses a street, they could all get run over, and that breeding season would be lost – stopping a next generation of toads from being produced.

Rescue Groups Across the United Kingdom

Finding hundreds of dead toads on nearby streets "inherently strikes a chord with people," and has led to the formation of toad patrols throughout the UK – hundreds of organizations are officially listed with a countrywide program. These teams pick up toads and carry them across roads in containers, as well as recording the quantity of toads they encounter and advocating for other protection measures, such as road closures and underground wildlife tunnels.

Patrols usually work during the migration season, when toad crossings are frequent. However, this implies they can overlook numbers of toadlets, which, having existed as eggs and then tadpoles, exit their water habitats over an unpredictable schedule in late summer. Because of their small stature – just one or two centimetres wide – "they are destroyed by car traffic." And as being hit "basically turns them into mush," it's harder to get data on them. At least when mature amphibians are killed, their carcasses can be tallied.

Annual Efforts

Unlike many groups, one local team, who are in their eighth year of functioning, go out year-round – not nightly, but when conditions are warm and wet, or if a member has posted about a amphibian spotting in their messaging app. When I request to accompany them on patrol, they admit it is "not ideal conditions" – winter dormancy has begun and it's been a arid period – but several of the volunteers gamely agree to patrol their area with me and see what we can find. "Should anyone can locate any toads tonight, those two will find one," says the group coordinator, indicating her teenage child and the longtime volunteer. We've been out for 120 minutes without a glimpse of any amphibians, and now they have scaled a wire barrier to check under some wood.

Community Participation

The family duo joined the patrol 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 look for things they could do jointly to protect local wildlife. Now she loves it as much as he does, the 41-year-old small business owner tells me – so when the group was looking for a fresh coordinator recently, she volunteered for the role.

The teenager, too, has been instrumental in the group. A video he made, urging the municipal authority to close a road through a protected area during migration season, influenced the outcome the team's way. After a twelve months of lobbying, the council agreed to an "restricted access" restriction between evening and morning from late winter through to April. Most drivers respected and 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 toads, but several crushed salamanders. We see one live amphibian as well, and the youngster is particularly pleased to see a daddy longlegs, which dances in his palms. Yet despite the team's best efforts to show me a toad, the local population has clearly settled down for the colder months. It seems that I wouldn't have had any better success elsewhere in the country – all the patrol groups I reach out to clarify that it's very difficult at this season.

They project rescuing nearly 10,000 grown amphibians during migration

One email I receive 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 title: "No toads." However, in February and March, he informs me, the team expects to help approximately ten thousand mature amphibians over the street.

Impact and Limitations

How much of a difference can these organizations actually make? "The reality that volunteers are doing this regularly on cold, damp and unpleasant late nights is remarkable," notes an expert. "That's something that very much should be celebrated." However, while rescue teams are able to slow the decline, they can't stop it completely – not least because traffic is just one danger.

Other Dangers

The climate crisis has meant extended spells of drought, which cause the wrong conditions for some of the creatures that toads consume, such as invertebrates, while higher water temperatures have caused an increase of toxic plants, which can be toxic to toads. Warmer cold seasons also cause toads to emerge from their hibernation more frequently, disrupting the resource preservation crucial to their life cycle. Loss of environment – especially the loss of big water bodies – is another menace.

Researchers are "always a bit worried about overemphasizing practical benefits on wildlife," but "There is a big value in just their presence." But toads do have an significant part in the ecosystem, eating pretty much any invertebrates or tiny organisms they can fit in their mouths and in turn sustaining a variety of predators, such as hedgehogs and otters. Improving situations for toads – ie creating more ponds, protecting forests and constructing amphibian passages – "we'll improve them for a whole bunch of additional wildlife."

Cultural Importance

Another reason to work to preserve toads around is their "important cultural value," adds an expert. Legends and tales around toads date back {centuries|hundred