Test Your Knowledge of the Sources of Bird Colors Quiz Statistics and Answer Key

This quiz has been taken 27 times, 9 times on Owlcation and 18 times on other sites.

Average score: 82%

Click on the links below to see statistics for each question:

Northern Cardinals are red because:
The correct answer is "Their diet includes carotenoids"

Blue Jays are blue because:
The correct answer is "They have a cellular layer that reflects light so that it looks blue to us"

The black of crows' feathers comes from:
The correct answer is "Melanins"

Iridescent feathers are:
The correct answer is "Weakest"

Bright red fluorescence under ultraviolet light means:
The correct answer is "Porphyrin pigment is present"