A male house finch that is a regular visitor to my deck for sunflower seeds appears sick. He’s less active, and when he ...

The difference between these birds becomes clear when you compare the adult males. Purple finches are a deep cranberry or raspberry color on most of their body. Male house finches are more orange ...

The attractive house finch is one of the more common and recognizable species throughout the United States. Originally a “western” species of semiarid environments, it was introduced in the ...

On freshly molted (nonbreeding) bird, the blackish and reddish regions ... Flight more resembles the house finch than native sparrows. A female orange bishop may be passed off as female house ...

The Wildlife Center of Virginia is warning people who like to feed birds to be on the lookout. An eye disease that can prove ...

"In house finches, outbreaks of mycoplasmal conjunctivitis tend to occur around the same time of year that birds rely heavily on bird feeders for energy to stay warm during cold outside conditions ...

In some finch species, the difference between colorful males and muted females comes down to one gene, BCO2, which encodes an enzyme that degrades carotenoids. NIH’s plan to reduce indirect funds ...