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Quick Answer. In a British study using different colored bird feeders, birds were most attracted to silver, blue and green. However, such preferences varied according to species, with goldfinches preferring green. Continue Reading.
The budgieâs green coloration is produced by a yellow pigment named psittacofulvin (psittacin) combined with the blue structure color on the featherâs surface (Vriends 70). The amount of psittacin in the birdâs molecular structure determines the shade and intensity of the plumage colors.