Birds of New York
More than 450 migratory, year-round, and wintering bird species call our state home.
When we say that birds are an "indicator" species, it means their presence - or absence - tells us about the health of an ecosystem.
Audubon worked with a couple who own and manage 117 acres of forest. Their woodlands have a wonderful variety of mature tree species – maples, beech, birches, eastern hemlock, oaks, and some large shagbark hickory. But only when a tree was felled and left on the forest floor did a Ruffed Grouse appear and make a nest in the remains! This bird’s population drastic decline in the northeast is largely due to loss of quality habitat. When the right habitat was re-created, they were able to return.
Here in New York, we hone in on the places birds need, and advance projects that aim to reverse their declines.
Meet some of the "indicator" species which guide our work across coastal, forest, wetland, and other habitats.
A bird of the coast, named for the spiky tips on its tail feathers (which it shares with several related kinds of sparrows). Saltmarsh Sparrows have an unusual mating system for a songbird, with males simply roving about looking for females rather than defending a nesting territory.
Male Scarlet Tanagers seem almost too bright and exotic for northeastern woodlands. These birds are fairly common in oak forests in summer, but they often remain out of sight as they forage in the leafy upper branches. Sometimes in spring, when the Scarlet Tanagers have just arrived from their winter home in South America, a late freeze will force them out in the open as they search for insects on roadsides or in gardens.
A small plover with a very short bill. Its pale back matches the white sand beaches and alkali flats that it inhabits. While many shorebirds have wide distributions, this one is a North American specialty, barely extending into Mexico in winter. Many of its nesting areas are subject to human disturbance or other threats, and it is now considered an endangered or threatened species in all parts of its range.
The sky-blue upperparts of the male Cerulean Warbler are difficult to observe in summer: At that season, the birds stay high in the tops of leafy trees in the eastern United States and extreme southern Canada. The bird itself has become harder to observe in recent decades, as its numbers have decreased in parts of its range. Cowbirds, which lay their eggs in the warblers' nests, may be finding their unwitting 'hosts' more easily as forest patches become smaller.
Easier to see than most owls, the Short-ear lives in open terrain, such as prairies and marshes. It is often active during daylight, especially in the evening. When hunting it flies low over the fields, with buoyant, floppy wingbeats, looking rather like a giant moth. Aside from its North American range, it also nests in South America and Eurasia, and on many oceanic islands, including Hawaii.
A very large, unmistakable shorebird of Atlantic and Gulf Coast beaches. Solitary or in family groups in summer, American Oystercatchers may gather in large flocks in winter.
Seemingly not as shy as the other brown thrushes, not as bold as the Robin, the Wood Thrush seems intermediate between those two related groups. It sometimes nests in suburbs and city parks, and it is still common in many eastern woodlands, where its flutelike songs add music to summer mornings. However, numbers of Wood Thrushes have declined seriously in recent decades, focusing the attention of conservationists on the problems facing our migratory birds.
Seldom seen but often heard, this medium-sized rail lives in marshes across much of our continent. This bird and the Sora are often found together, but their diets differ: the short-billed Sora eats many more seeds, while the long-billed Virginia Rail eats mostly insects. Virginia Rails communicate with a wide variety of calls, and some of these can be mystifying to listeners; one, dubbed the 'kicker call,' was attributed to the elusive Yellow Rail for many years.
The bright, sweet song of the Yellow Warbler is a familiar sound in streamside willows and woodland edges. This is one of our most widely distributed warblers, nesting from the Arctic Circle to Mexico, with closely related forms along tropical coastlines. Their open, cuplike nests are easy to find, and cowbirds often lay eggs in them. Yellow Warblers in some areas thwart these parasites by building a new floor over the cowbird eggs and laying a new clutch of their own. In one case, persistent cowbirds returned five times to lay more eggs in one nest, and an even more persistent warbler built six layers of nest floors to cover up the cowbird eggs.
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