Color vision of the budgerigar (Melopsittacus undulatus): hue matches, tetrachromacy, and intensity discrimination

Abstract

Budgerigars, Melopsittacus undulatus, were trained to discriminate monochromatic lights from mixtures of two comparison lights. The addition of small amounts of UV (365 nm) to blue or yellow lights dramatically changed the color for the birds. Hue matches showed the birds to be dichromatic both at long wavelengths (only P565 and P508 active) and at short… (More)
DOI: 10.1007/s00359-005-0024-2

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@article{Goldsmith2005ColorVO, title={Color vision of the budgerigar (Melopsittacus undulatus): hue matches, tetrachromacy, and intensity discrimination}, author={Timothy H. Goldsmith and Byron K. Butler}, journal={Journal of Comparative Physiology A}, year={2005}, volume={191}, pages={933-951} }