Song sparrows have streaked breasts, and the stripes usually unite into a dark spot at the center of the breast. This is a reliable field mark. Vesper sparrow is another fairly common open-country ...

Streaked shearwaters keep a very regular rhythm throughout their daily foraging flights, shedding about 5 percent of their body mass every hour. By Elizabeth Preston Scientists who attach video ...

Two weeks ago, I told you about the two crowned sparrows: the white-crowned sparrow and the golden-crowned sparrow. They are perhaps our two most notable autumn arrivals when it comes to neighborhood ...

I am guilty of a statement concerning a group of birds of our area. The statement is that these small birds are sometimes overlooked or ignored by observers (myself included) searching diligently for ...