Within two weeks of hatching, a young male Bewick's Wren is already out of the nest, skulking in the shrubbery. Over the next couple of weeks, the fledgling will learn at least 15 different song variations his father sings. After he wanders off to find his own territory, about a mile from…

Archaeological discoveries in Chile strongly suggest that chickens reached the New World about 100 years before the first Europeans. They apparently crossed the Pacific aboard outriggers piloted by Polynesian navigators. The DNA found in chicken bones in Chile resembles that of bones found…

After sunset, the American Robin sings faster and more elaborate versions of his daytime songs. Some birds have more than 100 songs! They time their singing to the intensity of light as well as to the time of sunset. When dark clouds roll in, they get rolling earlier. Males sing mainly to…

A waterfall roars in a box canyon deep in the Cascade Mountains. Just after sunset on a July evening, a slender, dark shape—a Black Swift—arcs into view, just in front of the waterfall. The swift builds its nest in crevices behind waterfalls in the western mountains, from British Columbia…

Wimbledon is legendary: the verdant green of the courts, the throngs of fans in sun hats, sightings of royalty ... and lots of pigeons. Since the tennis tournament began in 1877, pigeons nested in the stands and generally made a mess of things. Today, though, very few pigeons attend…

Birds' eggs range in size from the tiny hummingbird egg to the eight-inch egg of the Ostrich. Swifts lay only one or two eggs. Ducks may lay as many as 16 and don't begin to incubate until all eggs are laid, so all the eggs hatch about the same time. Incubation can take as few as 11 days…

At less than five inches long, the Red-breasted Nuthatch is the mid-sized nuthatch of the three species in the Northwest, and the most familiar. The White-breasted Nuthatch - like this one here - is the largest of the three, and boasts a louder, honking voice. The smallest of the trio is…

Black-capped Chickadees sometimes add extra dees to their calls. Christopher Templeton has cracked the chickadee code. He found that a relatively small threat, maybe a slow-to-maneuver Great Horned Owl, warranted only two dee notes. But a greater threat, an agile Northern Pygmy-Owl…

The last Passenger Pigeon in the world died on September 1, 1914. What happened to these lovely long-tailed doves? Huge flocks offered easy shooting, and the birds were hunted to extinction. We now have the awareness and tools to make sure that over-harvest and loss of habitat don't happen…

Charles Darwin's insights during his travels on the HMS Beagle in the 1830s revolutionized the natural sciences. And his personal accounts of the journey, such as his encounters with Magellanic Penguins, tell captivating stories. As an experiment, Darwin stood between a penguin and the sea…