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Center for Conservation Biology
Spring 2010 e-Newsletter


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Stories highlighted in this email:

Wind and waterbirds
Exploring eagle roost networks
Bachman's sparrow vigil in Virginia
New red-shouldered hawk monitoring project
Hope the whimbrel returns

More reading online at Conservation Cornerstones:

 

Peregrine falcon hack success

Camellia, 2001 EagleTrak Eagle

Sea-level rise and tidal freshwater marsh birds

Black rail populations in Chesapeake Bay
   nearing extirpation

 

Recent Media Coverage

 

CCB E-Newsletter

Open this Issue of Conservation Cornerstones

 

Ecology of tidal freshwater marsh birds

Winter marshbirds study

2010 whimbrel watch

Red knot numbers remain strong along the
   Virginia Barrier Islands

 

Get involved with CCB

     CCB's 2007 Annual Report is online in pdf document format.

 

 

Northern fulmars are one of many seabird species that utilize the Atlantic Flyway during the year.
Photo credit: Bryan Watts

 

Wind and waterbirds


In recent years, offshore wind development has become one of the fastest growing energy sectors in the world and the focus of the clean energy movement in the United States. The Atlantic Coast offers shallow, near-shore waters in close proximity to large load centers with some of the most lucrative and rapidly expanding energy markets in the nation. The coast is also the Atlantic Flyway, one of the largest near-shore movement corridors of birds in the world including many declining species of conservation concern.

Full story at CCB's online newsletter

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Adult transmittered eagle fishing at Conowingo Dam on the Susquehanna River, Maryland.
Photo credit: Ted Ellis

 

Exploring eagle roost networks


Non-breeding bald eagles are extremely social and frequently roost together near rich food resources. Communal roosts may be ephemeral congregations of birds that form to exploit short-lived food resources or may be used for decades. Most management programs to date have focused primarily on nesting sites, and there is very little systematic information on the abundance and distribution of bald eagle roosts. In 2007, CCB initiated a large project on tracking bald eagles and has been collecting data that is revealing eagle roost networks along the Atlantic coast.

Full story at CCB's online newsletter

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Adult Bachman's sparrow in hand
Photo credit: Bryan Watts

Bachman's sparrow vigil in Virginia


The Bachman’s sparrow is endemic to southeastern North America and is the only member of the Aimophila genus found within this region. Following a dramatic northerly range expansion in the late 1800s and early 1900s, this species has been contracting back to the core of its historic range in the extreme southeast. For several decades, Virginia has been the northern range limit for Bachman's sparrow breeding. CCB's 1996 survey found only 6 individual birds over the study area, and the species seems to have since disappeared from the state.

Full story at CCB's online newsletter

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Red-shouldered hawk chicks in nest
Photo credit: Bart Paxton

New red-shouldered hawk monitoring project


The red-shouldered hawk has a broad geographic range throughout eastern North America, and is generally believed to be a good indicator species for the health of floodplain forests. In addition, they have adapted to urban life which makes them one of the most observable forest raptors in the east. In spring 2010, the Center for Conservaion Biology initiated a new research project to survey red-shoulders in an 8 county region surrounding Richmond and Williamsburg and including the extensive floodplain forests of the James River. This is an opportunity for birders to volunteer to monitor this raptor species.

Full story at CCB's online newsletter

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Hope the whimbrel, fitted with satellite transmitter
Photo credit: Barry Truitt

Hope the whimbrel returns


Hope returned in April 2010 to the same marsh where she was captured in the spring of 2009, then left the Eastern Shore of Virginia staging area on May 22, 2010 and flew the 12-day, 3149-mile journey to the Northwest Territories, Canada, arriving on 4 June 2010, having stopped briefly along the coast of the Hudson Bay. Hope has confirmed how much the life cycle of this species is dependent on specific staging sites and that their migrations are surprisingly structured. Satellite tracking represents only one aspect of a broader, integrated investigation of whimbrel migration. During the past 2 years, the Center for Conservation Biology has used conventional transmitters to examine stopover duration, conducted aerial surveys to estimate seasonal numbers, collected feather samples to locate summer and winter areas through stable-isotope analysis, and has initiated a Whimbrel Watch program.

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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