This rare bird came to eat seeds. Charlie Stephenson from Alabama was surprised when I found out what a rare bird flies to the feeder: she never saw those birds in his back yard. She filmed the video and showed the local ornithologists who confirmed that the bright yellow color of the cardinals occurs in one bird per million.
Biologist from Auburn University Jeffrey hill, a specialist in bird color, believes that such a color is impossible in the wild and caused by genetic mutation. Jeff LeBron of National Audubon Society believes that changing the color of the plumage may be caused by poor nutrition, environmental factors or stress.
Although genetic mutation can also take place: if in the next season after the moult the bird will remain yellow and will not change the color to red, as befits a cardinal.