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The Effects of Dietary Carotenoid Supplementation and Retinal Carotenoid Accumulation on Vision-Mediated Foraging in the House Finch

Figure 3

Foraging performance under experimental lighting conditions.

Mean ± S.E. number of food pellets eaten by male and female house finches in experiment one, and by female house finches in experiment two under high-contrast full-light vs. low-contrast red-light conditions.

Figure 3

doi: https://doi.org/10.1371/journal.pone.0021653.g003