The threatened Rufous Limestone Babbler Gypsophila calcicola—not a quarry species, but a “quarried species”

Summary Limestone karst habitats are threatened globally by quarrying for production of concrete and cement. A significant area of limestone karst shared among the provinces of Saraburi, Lopburi and Nakhon Ratchasima in Thailand encompasses the entire global range of a threatened bird taxon, the Rufous Limestone Babbler Gypsophila calcicola. We estimate that 10% of the suitable habitat for this species had already been lost to quarrying by 2020,...