"The wildfires that used to burn each summer in the woods above the Spanish village of Barro have diminished to almost none since Lucia Perez started grazing wild horses there.
“There used to be fires every year but since 2019 when we started coming here we’ve had one small fire in the first year and nothing since,” said Perez, 37, explaining how by clearing the undergrowth between the trees the horses help stop fires igniting and spreading.
Fire prevention is one of several roles wild horses play in preserving the northwestern region of Galicia’s delicate ecosystems, scientists say. But Europe’s largest herd of wild horses has dwindled to less than half the 22,000 that roamed its mountains, forests and heathlands in the 1970s.
On the Serra da Groba heath 80 km (50 miles) southwest of Barro, a herd of wild horses feasts on the yellow flowers of gorse, “selectively clearing” a plant that is especially combustible, said Laura Lagos, a researcher at the University of A Coruna."
Charlie Devereux reports with photography and reporting by Nacho Doce for Reuters March 25, 2025,
