In 1943, these released birds were reported breeding in the New York area. By 1971, breeding populations extended along the east coast from New England to North Carolina. Their populations continued to expand westward. Reports of these birds in Indiana were sporadic in the mid 1970's. Now, this species is widespread over Indiana much of the USA and southern Canada.
Adult males vary in color from orange yellow to bright red.
The color is derived from carotenoid pigments that are obtained from their diet of seeds, flowers, and fruits and added to the feathers during normal periods of feather replacement. Studies have shown that brightly colored males are more successful at attracting mates than duller males. Brightly colored males also survive the winter better. The short convex bill of the House Finch is adapted to a diet of seeds and fruits. Some males show a yellowish to red color.