Attributes / relations provided by
♦ 1Jenkins, JM 1983.
The native forest
birds of Guam Ornithological Monographs 31. American Ornithologists' Union, Washington DC
♦ 2del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.).
Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ 3Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014.
EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
♦ 4BirdLife International (2012) Species factsheet:
Collocalia bartschi. Downloaded from http://www.birdlife.org on 06/09/2012.