A new bird has been discovered by a ProAves expedition in Serranía de los Yariguíes mountains, near ProAves’ Cerulean Warbler Bird Reserve in Colombia. It is a subspecies of the Pale-bellied Tapaculo called Scytalopus griseicollis gilesi and named after Robert Giles.

This new subspecies of Pale-bellied Tapaculo is the third new taxon to be described from recent explorations of the Yariguíes mountains of Colombia. It follows the Yariguíes Brush-Finch Atlapetes latinuchus yariguierum and the butterfly Idioneurula donegani. Several other new taxa discovered in these expeditions await still description due to the lengthy processes for review and publication.

"This and other discoveries from our expeditions show the Yariguíes mountains to be a previously unknown centre of endemism” commented Thomas Donegan, “It is important to conserve the habitats of this region to protect the populations of this species and subspecies which, like this Tapaculo, are found nowhere else in the world."