The distinctive view and sound of a Dartford furnace from the top of a twig of May in the May sun is well returned after the bird almost disappeared half a century ago.
Dartford butterflies have collapsed and are at risk of extinction from the United Kingdom in the 1960s, largely due to the loss of the lowland wastelands in which they thrive.
But the RSPB has the highest recorded number of Dartford sticks – 183 pairs – in its reserves, including the RSPB Arne in Dorset and the RSPB Minsmere in Suffolk.
In addition to needing shelter, the bird is susceptible to harsh weather and was nearly destroyed by the great frost of 1962-3, but recent milder weather has helped it recover.
The population has recovered in recent years and by 2019, 23 pairs have been found in the Minsmere coastal reserve; the figures show that there are now 37 couples there.
Mel Kemp, the overseer at Minsmere, who oversaw the redevelopment of the desert, said: “We are seeing a steady increase in the number of Dartford cinderellas, among other species that rely on wilderness habitats, such as nightingales. All the hard work to restore this habitat has really paid off. “
Dartford singer (Sylvia undata), on a header on the shores of Suffolk. Photo: Christopher Smith / Alami
Dartford butterflies are long-tailed butterflies; male gray and chestnut birds are often seen singing from the tops of the bushes in the spring sun, hoping to attract a mate.
In addition to being the perfect platform for singing, the thorn bush provides a safe place for nesting and hunting of the bird, which specializes in picking spiders and caterpillars from their hiding places.
Heathland supports a range of wildlife, from birds and mammals to insects, reptiles and amphibians, but it is one of the most endangered nature homes in the UK, with 80% lost since the 1800s through land use change.
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Kemp said: “We must continue to restore, manage and protect the wastelands we have left here in the UK to best ensure the future of not only the Dartford splash but many other species as well.
In addition to doing well in Dorset and Suffolk, Dartford gains have been seen in RSPB reserves in Devon, Kent, Surrey and Hampshire.
The return of the bird is the second good news for the birds in a week for Dorset, after it was revealed that a pair of scorpions in the port of Poole have produced an egg, the first attempt to breed in the south of England in almost 200 years.
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