Date of this Version
Published in Science, New Series, Vol. 217, No. 4560 (Aug. 13, 1982), pp. 655-657
An ecological approach based on food distribution suggests that hummingbirds should more easily learn to visit a flower in a new location than to learn to return to a flower in a position just visited, for a food reward. Experimental results support this hypothesis as well as the general view that differences in learning within and among species represent adaptations.