Competition for the Nectar of Centropogon valerii by the Hummingbird Colibri thalassinus and the Flower-Piercer Diglossa plumbea, and Its Evolutionary Implications
- 1 January 1974
- journal article
- Published by Oxford University Press (OUP) in Ornithological Applications
- Vol. 76 (4) , 447
- https://doi.org/10.2307/1365817