Habitat
Semi-deciduous foothill-forest, including tall second growth, regenerating, natural tree gaps, and lightly to heavily disturbed remnant forest. From 450 - 900 m.
Eastern and northern slopes of central Andes (in Antioquia and Caldas) and western slope of eastern cordillera (in Boyacá), in Colombia.
 
Population
Estimated population is 1,000 - 2,499 (2010) and decreasing.
Status EN
Habitat destruction and degradation through logging, livestock-farming, arable cultivation, infrastucture development, oil extraction and mining, are the main threats.
For more information see BirdLife International Species Factsheet.
Habits
Often joins mixed-species flocks.
Voice
Calls are an individual, short, slightly up-slurred 'weeet'.
Similar Species
Spectacled Bristle-Tyrant (Pogonotriccus orbitalis) has complete eye-ring, narrower whitish-yellow wing-bars, yellowish-olive underparts, and grey crown blending into greenish back. Marble-faced Bristle-Tyrant (Pogonotriccus ophthalmicus) which is larger, with distinct black auricular patch.
References
See References.