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Latest Dendroica Stories

2009-12-04 15:04:24

Birds' alarm calls serve both to alert other birds to danger and to warn off predators. And some birds can pull a ventriloquist's trick, singing from the side of their mouths, according to a UC Davis study. Many animals respond vocally when they detect predators, but it's not clear to whom they are signaling, said Jessica Yorzinski, a graduate student in animal behavior at UC Davis who conducted the study with Gail Patricelli, professor of evolution and ecology. They might be warning others...

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2009-11-27 12:10:00

Ecologists have at last worked out a way of using recordings of birdsong to accurately measure the size of bird populations. This is the first time sound recordings from a microphone array have been translated into accurate estimates of bird species' populations. Because the new technique, reported in the British Ecological Society's Journal of Applied Ecology, will also work with whale song, it could lead to a major advance in our ability to monitor whale and dolphin numbers. Developed by...

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2009-10-26 14:47:21

Biologists for the first time have documented a second breeding season during the annual cycle of five songbird species that spend summers in temperate North America and winters in tropical Central and South America. It was known that these species, which migrate at night when there are fewer predators and the stars can guide their journey, breed during their stay in temperate regions of the United States and Canada. But it turns out that they squeeze in a second breeding season during a...

2009-10-26 07:00:00

MILWAUKEE, Oct. 26 /PRNewswire/ -- Feathered friends wear out their welcome once they start roosting in the rafters above the prepared-foods section at a supermarket, or triggering the automatic doors at a big-box hardware store as they fly above heads of customers and cashiers. But a new bird-control system from Milwaukee-based Prolitec Inc., a leader in indoor air-quality systems and services, uses natural aromas to make birds head for the exit -- for good. "Because this bird-control...

2009-10-23 20:34:00

SAN FRANCISCO, Oct. 23 /PRNewswire-USNewswire/ -- IBRRC / California-based seabird specialists International Bird Rescue Research Center (IBRRC) are rushing to the aid of seabirds threatened by an unusual algal bloom off the Oregon Coast. The world-renown team from International Bird Rescue, who have saved thousands of seabirds from oil spills around the world, are in a race against time to transport red-throated loons, and other highly sensitive migratory birds, to a state-of-the-art...

2009-09-30 11:15:00

IRVINE, Calif., Sept. 30 /PRNewswire/ -- While most people have a twinge of fear when they hear the words "wildfire" or "bees," learning more about both is an important part of living in harmony with an ever-developing urban environment. The Orange County Great Park presents the Natural History Lecture series, a series of evening events offering new insights into our natural and dynamic Southern Californian environment. The first two lectures in the series explore survival of...

2009-09-15 14:06:00

SAINT JOHN, New Brunswick, Sept. 15 /PRNewswire-USNewswire/ -- The following is being issued by Two Countries, One Forest: At a meeting today of the New England Governors and Eastern Canadian Premiers held in St John, New Brunswick, the New England Governors committed to a New England wide cooperative action plan for the conservation of New England's forests, farms and coastlines. At a meeting that addressed climate change, energy development, transmission and the development of a green...

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2009-09-14 15:30:00

If the climate is not quite right, birds will up and move rather than stick around and sweat it out, according to a new study led by biologists at the University of California, Berkeley. The findings, to be published the week of Sept. 14 in an online early edition of the journal Proceedings of the National Academy of Sciences, reveal that 48 out of 53 bird species studied in California's Sierra Nevada mountains have adjusted to climate change over the last century by moving to sites with the...

2009-08-12 13:05:11

A U.S. study suggests migrating birds will stop in any environment where there is adequate food and protection, and not just in large forested areas. Purdue University Associate Professor John Dunning and graduate student Diane Packett conducted the study, which indicates conservation efforts should extend to smaller forested lands to help stabilize declining migratory bird populations. There are strategies for conserving forest for migratory birds, but those strategies emphasize the largest...

2009-06-04 13:56:12

Reed warblers learn from neighbors to defend their nests against parasitism from cuckoosReed warblers live with the threat that a cuckoo bird will infiltrate their nest, remove one of their eggs, and replace it with the cuckoo's own. This 'parasitism' enables the cuckoo to have its young raised by unsuspecting reed warblers.However, scientists at the University of Cambridge have discovered that reed warblers will attack or 'mob' cuckoos on their territory and so prevent the parasites from...


Latest Dendroica Reference Libraries

18_601409d3b00b3bdae341635d6d85c0b8
2008-08-15 20:12:15

The Bay-breasted Warbler (Dendroica castanea), is a bird of the New World warbler family. They breed in northern North America, specifically in Canada, into the Great Lakes region, and into northern New England. These birds are migratory, wintering in northwest South America and southern Central America. They are very rare vagrants to western Europe. The summer male Bay-breasted Warblers are unmistakable. They have gray backs, black faces, and chestnut crowns, flanks and breasts. They also...

18_4b00ab6408c0912d8ee0eeda294c0512
2008-08-15 20:05:36

The Palm Warbler (Dendroica palmarum), is a small songbird of the New World warbler family. Palm Warblers' breeding habitats are bog edges across Canada and the northeastern United States. These birds migrate to the southeastern United States, Mexico and islands in the Caribbean. These birds have dark legs and thin pointed bills, and adults display a rusty cap. Eastern birds have brownish olive upperparts, yellow underparts, and rusty streaks on their breasts and flanks. Western birds have...

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2008-08-15 19:57:11

The Pine Warbler (Dendroica pinus), is a small songbird of the New World warbler family. Their breeding habitats are open pine woods in eastern North America. These birds are permanent residents in southern Florida. Some of them, however, migrate to northeastern Mexico and islands in the Caribbean. The first record for South America was a vagrant wintering female seen at Vista Nieve, Colombia, on 20 November 2002. This bird was foraging as part of a mixed-species feeding flock that also...

18_00cd88f423ab8eddb35a043cba6dda56
2008-08-15 19:51:16

Adelaide's Warbler (Dendroica adelaidae), is a bird endemic to the archipelago of Puerto Rico belonging to the Dendroica genus of the Parulidae family. Adelaide's Warbler occurs in the main island of Puerto Rico and in the island municipality of Vieques. The species occurs mainly in dry forests in the southern region of Puerto Rico such as the Guánica State Forest, with some occurrences in the northern moist forests and the central mountain range, Cordillera Central. The species is named...

38_188d815376cb45dfea82d71f156cb044
2008-08-15 19:42:03

The Yellow-throated Warbler (Dendroica dominica), is a small New World warbler. These birds breed in southeastern North America, and their breeding ranges extend from southern Pennsylvania and northern Missouri, to the Gulf of Mexico. Two subspecies may be found in northwest Florida and the Bahamas. These are resident in those locales, but the other populations of these birds are migratory, wintering at the Gulf Coast, eastern Central America, and the Caribbean. Vagrant wintering birds are...

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Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.