Have you noticed that there is a bumper crop of cones on most of our conifers? The importance of this is that our deciduous ...

I’ve been trying for several years to get good pictures that show the differences between purple finches and house finches, the two species of reddish finches that live in or migrate through Berks ...

A: No one knows for sure what causes baldness in birds. And often in the literature that I read, the condition has not been well studied. Fortunately, in most cases new head feathers grow within a few ...

We had a newcomer at our birdfeeder today. It looked like a sparrow, but we thought its head had a touch of red. It was exciting, since our winter birds left long ago. Except for a pair of cardinals, ...

April 23 (UPI) --The heads of Gouldian finches feature one of three different colors: yellow, red and black. Now, scientists know why the pressures of natural selection have failed to erase the ...

In studying animal communication, it’s hard to know whether animals react instinctively to the vocalizations of others or ...

When red-billed and yellow-billed finches mate, their offspring have orange bills. By studying the exact shade of orange in ...