Male House Finches are generally red, but under certain certain circumstances they may be orange or yellow instead. Different subspecies may show color variations, but differences in color are also attributed to diet. When a bird is molting, its diet will determine the colors of its new feathers.
Keeping this in consideration, do house finches change color in winter?
American Goldfinch follows this pattern. Beginning in September, and continuing for six to eight weeks, they molt all of their feathers, ending up with a completely new and pristine set of feathers (and drab colors) as they head into the winter. First signs of molt to breeding plumage show, especially around the head.
Furthermore, why are finches different colors? It turns out that House Finches acquire their coloration from pigments in the plant foods they eat. This is true for most birds with red-, orange-, or yellow-pigmented feathers. These tones each derive from a different organic pigment, known as carotenoids.
People also ask, do finches change color?
The male goldfinches molt into their brilliant spring outfits. New, colorful feathers push out the worn, dull winter plumes. Again, the traditional answer is they become duller in the winter so they can better hide from predators.
How can you tell the difference between house finches and purple finches?
They are about the same size and shape, but the difference is in the coloring. The males can be distinguished by the shades of color. The male House Finch is an reddish-orange, while the male Purple Finch is a reddish-purple. The House Finch has what looks like streaking on the breast and the sides.