Colibri del Sol Bird Reserve is a 2,852 ha nature reserve in Colombia. It lies at the base of the Páramo del Sol volcanic massif west of the city of Medellín in the Department of Antioquia. It was established in 2005 by Fundación ProAves, a non-profit environmental organization that owns and manages several reserves in Colombia.
Following an expedition to the Páramo de Frontino in 2004, researchers rediscovered two extremely range-restricted endemic species, the dusky starfrontlet and the chestnut-bellied flowerpiercer. In 2005, a large bird reserve was established across the paramo and montane forest by Fundacion ProAves and named after the dusky starfrontlet.
Other locally endemic birds are the Fenwick's antpitta and Paramillo tapaculo. Other key species include the rusty-faced parrot, Andean pygmy owl, ocellated tapaculo, moustached antpitta, black-throated flowerpiercer, white-capped and red-hooded tanagers, black-collared jay and black-billed mountain toucan.