This male House Finch may be the same one as the silent one I saw recently (Eye Candy May 10). Not silent now, it has a pretty tune to sing. These birds’ color intensity depends on their diet; the more seeds they eat that contain carotenoids, the redder they become. But this only works for the males. The females don’t turn red no matter how many carotenoids they consume. It’s all in the hormones. However, this male’s seductive song may not help him find a mate. Females prefer the reddest male they can find, and this one is just orange. He still needs to eat a lot more pigment before he becomes competitive in the finch dating game.