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vocalization

Early Spring Songs (South Texas)

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... read more »

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Topics & Themes:  migration, vocalization

Early Spring Songs (SE Alaska)

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 University's... read more »

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Topics & Themes:  migration, vocalization

Early Spring Songs (Washington State)

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 of the... read more »

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Topics & Themes:  migration, vocalization

Spring Brings New Bird Songs

All winter long, our neighborhood House Finches--like this one--have called to one another with their distinctive, sweet cheeps. And our resident Song Sparrows, with calls that sound like a tiny barking dog. But as the days grow longer in late winter, the lengthening light helps trigger a bird's... read more »

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Topics & Themes:  migration, vocalization

How Birds Produce Sound

Nearly all birds produce sound through an organ unique to birds, the syrinx. In many songbirds, the syrinx is not much bigger than a raindrop. Extremely efficient, it uses nearly all the air that passes through it. By contrast, a human creates sound using only 2% of the air exhaled through the... read more »

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Topics & Themes:  science, vocalization

Henry David Thoreau and the Wood Thrush

In June 1853, Thoreau wrote of an enchanting encounter with the Wood Thrush: "This is the only bird whose note affects me like music. It lifts and exhilarates me. It is inspiring. It changes all hours to an eternal morning." Wood Thrushes thrive in large expanses of forest. And their numbers have... read more »

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Topics & Themes:  migration, vocalization

Bird Songs Reflect Habitat

The Canyon Wren's eloquent song soothes the soul. Naturalist Ralph Hoffman likened it to "the spray of a waterfall in sunshine." Its close cousin, the Marsh Wren, wound up with a harsh, ratcheting song - about as musical as a tiny machine-gun barrage. Birds' songs mirror their environments. The... read more »

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Topics & Themes:  vocalization

Strange Sounds

What an amazing array of sounds birds have to offer! The call of a male Yellow Rail sounds like someone tapping two small stones together. And Turkey Vultures hissing at one another over a carcass sound like a snarling lion. The duet between the male and female Barred Owls seen here is especially... read more »

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Topics & Themes:  sound, vocalization

Olive-Sided Flycatcher - Preserving a Unique Voice

These days we're hearing the song of the Olive-sided Flycatcher less often. Clear-cutting and fire suppression in forests, along with acid rain, has reduced its available habitat. Pesticides affect the supply of food. American Bird Conservancy has named it a priority species for conservation.... read more »

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Topics & Themes:  migration, vocalization

Kauai O'o, Hawaiian Forest Bird

The Kaua'i O'o, a small forest bird, was once found on the Hawaiian Island of Kaua'i. Sadly, the O'o's song was heard for the last time in 1987. The native birds of the Hawaiian Islands have been hit hard by changes brought about by humans. Habitat destruction, introduction of non-native species,... read more »

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Topics & Themes:  vocalization

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