Male house finches are usually marked with red, but sometimes those red areas are replaced with orange or yellow or some of both. The red pigment in the feathers is affected by what the finch eats ...

Molting is when the bird loses old feathers to grow new ones. The more pigment in the food, the brighter red the bird. Coloring can vary and some male house finches have a yellow-orange color.

House finches avoid sick members of their own species, scientists said Wednesday in a finding that could be useful for tracking the spread of diseases like bird flu that also affects humans.

In the 1940s, house finches had been illegally captured and ... bird with black and white striped tales and chests, brown side feathers, and orange cheeks. Females are usually gray.

It’s that time of year here in our neck of Pennsylvania when it’s prime nesting season for our feathered friends. Case in ...

One other example of “birds not of a feather nesting together” does ... Although martins are bigger than sparrows, the house sparrow, as a finch, has a more sizeable beak.

One other example of “birds not of a feather nesting together” involves ... Although martins are bigger than sparrows, the house sparrow, as a finch, has a more sizeable beak.