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Common nighthawk, Comanche National Grassland Area, SE Colorado
Photo credit: Michael Menefee
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Nightjar Survey investigates birds and land use
For the fourth consecutive year, volunteers from across the United States set forth into the night to conduct nocturnal survey routes for the U.S. Nightjar Survey Network. This Network is a national program specifically designed to gather population distribution and trend data on the group of species like whip-poor-wills, common nighthawks, common poorwills and their close taxonomic relatives. Survey data is already providing fundamental building blocks to inform land-based management decisions to conserve populations.
Full story at CCB's online newsletter
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Southern saltmarsh sparrow (Ammodramus caudacutus diversus)
Photo credit: Bryan Watts
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Southern range limit of breeding saltmarsh sparrows
The saltmarsh sparrow (Ammodramus caudacutus) is a species of high conservation concern due to its extremely limited global distribution, its complete dependence on salt marshes, and the vulnerability of these marshes to sea-level rise. The species is confined to the narrow ribbon of salt marsh habitat on the outer coast of New England and the mid-Atlantic. Historically, there has been considerable confusion over the southern range limit for breeding in this form. CCB has conducted investigations over the past decade to help locate the range limit for breeding.
Full story at CCB's online newsletter
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Washover fan near the south end of Assawoman Island, oceanside of Virginia's Eastern Shore
Photo credit: Bryan Watts
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Spring shorebird migration on the lower Delmarva
Many nearctic shorebirds breed in the northern latitudes of North America and winter in the tropical to temperate latitudes of Central and South America. Movements between breeding and wintering areas may cover thousands of kilometers and are energetically expensive. In order to fuel these flights, many species rely on a series of staging areas where they rebuild fat reserves prior to the next long-distance flight. The lower Delmarva Peninsula in Virginia is a significant staging area for several shorebird species.
Full story at CCB's online newsletter
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Great egrets loafing along the shoreline
Photo credit: Bryan Watts
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Waterbird community expands on upper Pee Dee River
The 2010 breeding season represents the 10th consecutive year that the Center has conducted aerial surveys for breeding waterbirds in the upper Pee Dee River basin in the Piedmont of North Carolina. The four reservoirs, all managed by ALCOA for the production of hydro-electric energy, support a growing community of fish-eating birds and are significant within this area. The survey series represents a view into ongoing population changes for these species within the region.
Full story at CCB's online newsletter
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Bald eagle incubates in nest on a several hundred year old bald cypress in the Dragon Swamp
Photo credit: Bryan Watts
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2010 Virginia Eagle Survey reaches milestones
The Virginia Bald Eagle Survey is a national treasure. The survey has become one of the most significant serial data sets in the world. Over the past 55 years, the survey has documented biocide-induced reproductive suppression, the resulting population low, and a dramatic recovery in both reproductive rates and the overall population following the ban of DDT and like compounds. More than population information alone, the effort has produced a wealth of ecological information on a population recovering within an increasingly human-dominated landscape. It has become one of the best records of arguably the greatest conservation achievement in our nation’s history.
Full story at CCB's online newsletter
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Banner image of a satellite-tagged Bald Eagle in flight, courtesy of Charlie Volz at Aberdeen Proving Ground.
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