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invasive species

Hawaiian Goose - New Hope for the Nene

On the grassy edge of one of the ponds at Hanalei Wildlife Refuge, we find a Nene -- or Hawaiian Goose -- a small goose found nowhere else but Hawaii. The Nene is the only state bird that is also an endangered species. Once common in the Hawaiian Islands before the first humans landed here, they... read more »

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Topics & Themes:  science

The State of the Birds on Kauai

The native birds of Hawaii, like birds of many island groups, have been hit hard by human-induced changes. This Kauai O'o, a forest bird, has not been seen in 20 years. Its bell-like song once rang widely through the mist-shrouded rainforest. There may still be time to save other birds. Read... read more »

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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

Saving Hawaii's Birds - With American Bird Conservancy

American Bird Conservancy and other organizations are working to make Hawaiian birds a top national priority for conservation. Of all the endangered bird species in the United States, more than one-third are found only in Hawaii. Biologists on Hawaii's Big Island are working to restore this... read more »

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Topics & Themes:  science

Rock Pigeon, Urban Bird

The Rock Pigeon is the quintessential urban bird. Early European settlers at Jamestown and Plymouth introduced it to North America in the 1600s, and it is now found across the entire country. Flocks roam parks and city streets and sit on wires and billboards.Be part of our flock of supporters,... read more »

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Song of the Kauai O'o

The sweet, bell-like tones of the Kauai O'o were heard for the last time nearly 20 years ago. The native birds of the Hawaiian Islands, like birds of many island groups, have been hard hit by changes wrought by humans. At least 90% of the bird species driven to extinction in recorded history have... read more »

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Topics & Themes:  recording, sound, vocalization

The Lowly Starling

Much maligned as a pest and cursed by many as an "invasive species," the European Starling has had many fans, too. Eugene Schieffelin introduced about 50 pairs into the United States in the 1890s. And Rachel Carson noted that the starling carries "more than 100 loads of destructive insects per... read more »

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Topics & Themes:  music, vocalization

Birds Are Evolving Rapidly - Today

House Finches are evolving rapidly and visibly. In 1941, some captive House Finches from California escaped near NYC. They spread rapidly and are now found across most of the US. We know the finches have evolved, because those that survive differ from their parents. Size is one example. Male... read more »

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Topics & Themes:  ornithology

Eurasian Collared-Doves - They Have Arrived

In 1974, Eurasian Collared-Doves escaped from captivity in the Bahamas and began to breed in the wild. Soon, they colonized southern Florida. They began expanding in a northwesterly direction, and by the year 2000, they had arrived in the Pacific Northwest. They thrive where backyard trees offer... read more »

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Eurasian Collared-Doves Expand

In the Bahamas, in 1974, the Eurasian Collared-Dove escaped from captivity and began to breed in the wild. By the late 1970s, the doves had flown west and colonized southern Florida. As their numbers grew, the doves expanded into rural and suburban areas, moving quickly in a northwesterly... read more »

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