An endangered species in the northeastern part of the US, the Roseate Tern survives only with vigilant protection of its remaining nesting sites. One key site is the Stewart B. McKinney National Wildlife Refuge in Connecticut. The refuge's critical habitats help sustain nearly 300 bird…

Protection Island National Wildlife Refuge is one of the most important sanctuaries on the planet for nesting marine birds. It lies off the north coast of Washington State's Olympic Peninsula. Over 30,000 Rhinoceros Auklets - like this one - nest on Protection Island, and it's home to a…

A week of non-stop singing attracts a female Wilson's Warbler to the male's territory at the edge of the forest. The female alone builds a nest, concealing it in mossy ground at the base of a shrub, or perhaps in a tussock of grass. She lays four eggs, which she incubates for 12 days. When…

As we ponder the wonders of bird sounds, how many of us think of gulls? Are gulls underrated as singers? We may be more inclined to prize gulls for their ability to catch French fries in mid-air along the waterfront. But they are actually quite accomplished vocalists. The Glaucous-winged…

A high-pitched, tinkling birdsong rings across the open, grassy expanse of a field. The song comes from above, as a male Horned Lark hovers on fluttering wings, circling a hundred feet above the ground. Although a locally common nester in some open habitats of the West, the population in…

Many sandpipers have sensitive nerve receptors in their bill tips, so they can find unseen prey through touch, odor, and pressure changes - and so, feed even at night. This Long-billed Curlew (in back) sports a slender, down-curved bill that may reach nine inches long. The Bar-tailed…

In March, we welcome the lengthening days and the renewal of bird song. Among the earliest spring singers in the Northwest is this House Finch, whose sweet, jumbled song carries along city blocks and rocky canyons. And spring songs are breaking out all over the country. Listen to the song…

In March, we welcome the lengthening days and the renewal of bird song. Among the earliest spring singers in south Texas are White-throated Sparrow, Cassin's Sparrow, and Purple Martin (left). And spring songs are breaking out all over the country. Listen to the songs of these early spring…

In March, we welcome the lengthening days and the renewal of bird song. Among the earliest spring singers in the SE Alaska are American Dipper (left), American Robin, and American Tree Sparrow. Listen to the songs of these early spring songsters and thousands of others at Cornell…

In March, we welcome the lengthening days and the renewal of bird song. Among the earliest spring singers in California are American Robin (left), Fox Sparrow, and Wrentit. Listen to the songs of these birds, plus thousands of others at Cornell University's Macaulay Library website. Learn…