You may not have seen a Northern Cardinal in the wild, but you've probably seen one on holiday cards or the cover of a bird book. During spring breeding season, biologist Eric Lind and his team capture and band birds at Constitution Marsh on the east side of the Hudson River. For eight…

So many little brown birds look the same. They might be sparrows, or wrens, or finches, or something altogether different. And you often find them together in winter. Learning to tell these "LBBs" apart can be really frustrating for novice birdwatchers. Birds such as wrens, finches, and…

This month, the Bufflehead returns from the boreal forests of Canada and Alaska to winter in our waters. Its nicknames include little black-and-white duck, bumblebee duck, buffalo-headed duck, butterball, and spirit duck. Buffleheads have elaborate courtship displays that they perform…

Henry David Thoreau wrote, "Our little mountain-ash is all alive with [birds.] A dozen robins on it at once ... plucking the berries... A robin will swallow half a dozen berries, at least, in rapid succession..." If you, too, enjoy watching birds eat berries, then consider planting trees…

Autumn brings robins to feed on tree fruit and berries. Are the robins you see now the same robins that you saw in your garden last summer? Some robins do remain year 'round. Others spend only the winter, having nested farther north. John James Audubon may have been the first to band birds…

In September, 1851, Henry David Thoreau wrote: "The Whip-poor-wills now begin to sing in earnest about half an hour before sunrise, as if making haste to improve the short time that is left them. As far as my observation goes, they sing for several hours in the early part of the night . .…

In July, 1741, Georg Wilhelm Steller set foot on land later known as Alaska, the first European to do so. Steller was a German naturalist on the St. Peter, a Russian ship exploring the Bering Sea. He was shipwrecked on Bering Island for over a year, and later wrote a book about the…

Band-tailed Pigeons are found mostly in low-altitude forests. Though about the size of city pigeons, they can be shy and sometimes hard to see. Strictly a bird of the western states, the Band-tailed Pigeon is decreasing in numbers. This is probably because the forests that the pigeons…

Sitting on a piling, wings outstretched, the Double-crested Cormorant looks like a black Celtic cross. Cormorants dive from the water's surface, pursuing prey under water, propelled by powerful webbed feet. The male performs a flashy wing-waving display to show off his colorful head-tufts…

Does a hummingbird migrate by hitching a ride on the back of a goose? Not exactly. This Rufous Hummingbird may travel as much as 8,000 miles, as it makes its full migration loop. And a hummingbird can fly backward, forward, hover in one spot, or even flip upside-down momentarily. Learn…