We classified the abundances of the species of hummingbirds in Parque Natural Municipal Ranchería,(Boyacá) and their annual cycles of breeding, molt, fat reserves and body mass in relation to theseasonality of flowers they visited in high Andean forest and areas where the removal of forest cover hadpermitted invasion by plants of the páramo. The hummingbird community includes 16 species recorded bycaptures and direct observations. In the paramized areas, Eriocnemis vestita was the most abundant andterritorial species, followed by Metallura tyrianthina and in lesser numbers by Colibri coruscans. Themost intense breeding period of the hummingbirds occurred mainly during the first months of the year,partly coinciding with the first peak of blooming of the ornithophilous plants, while their molt was mainlyduring the second peak of blooming, when they also presented their greatest fat reserves and body masses.Species like Coeligena bonapartei, Colibri coruscans, Eriocnemis cupreoventris, E. vestita, Heliangelusamethysticollis, Lafresnaya lafresnayi and Metallura tyrianthina use the area of the park both for breedingand molting. The remaining species are seasonal or occasional in the area.