Tuesday, March 13, 2018

A long time coming...

It is with great happiness and relief to share that our paper was officially accepted for publication by PeerJ!

I am writing to inform you that your manuscript - Year-round monitoring reveals prevalence of fatal bird-window collisions at the Virginia Tech Corporate Research Center has been Accepted for publication. Congratulations!

Will be back soon to post the entire paper when published. 

Collisions with glass are a serious threat to avian life and are estimated to kill hundreds of millions of birds per year in the United States. We monitored 22 buildings at the Virginia Tech Corporate Research Center (VTCRC) in Blacksburg, Virginia, for collision fatalities from October 2013 through May 2015 and explored possible effects exerted by glass area and surrounding land cover on avian mortality. We documented 240 individuals representing 55 identifiable species that died due to collisions with windows at the VTCRC. The relative risk of fatal collisions at all buildings over the study period were estimated using a Bayesian hierarchical zero-inflated Poisson model adjusting for percentage of tree and lawn cover within 50 m of buildings, as well as for glass area. We found significant relationships between fatalities and surrounding lawn area (relative risk: 0.96, 95% credible interval: 0.93, 0.98) as well as glass area on buildings (RR: 1.30, 95% CI: 1.05, 1.65). The model also found a moderately significant relationship between fatal collisions and the percent land cover of ornamental trees surrounding buildings (RR = 1.02, 95% CI: 1.00, 1.05). Every building surveyed had at least one recorded collision death. Our findings indicate that birds collide with VTCRC windows in the summer breeding season in addition to spring and fall migration. The Ruby-throated Hummingbird (Archilochus colubris) was the most common window collision species and accounted for 10% of deaths. Though research has identified various correlates with fatal bird-window collisions, such studies rarely culminate in mitigation. We hope our study brings attention, and ultimately action, to address this significant threat to birds at the VTCRC and elsewhere.

Tuesday, September 1, 2015

Tuesday, June 23, 2015

From the Fabricator: Birds and Glass

"There are many ways I can go with this story, but I’ll just say this: There are options for bird-friendly glazing. And it’s time for the focus to go from the glass being an issue to the glass being a solution. The owner/architect needs to be on some of the hooks here. The materials are there, and the designer needs to take into account bird migration paths and design accordingly. While you’ll see in the linked article that glass is listed as the bad guy, I sincerely hope that we as an industry can stand up and note that it simply shouldn’t be all on us."


Duke ‘green’ building blamed for bird deaths

One of the first Duke University buildings to be certified as “green” appears to be causing more bird deaths than any other building on campus.  The Fitzpatrick Center for Interdisciplinary Engineering, Medicine and Applied Sciences caused 85 bird deaths during three 21-day surveys during the peak migration period spanning 2014-15."

Read more here: http://www.newsobserver.com/news/local/community/durham-news/article24691264.html#storylink=cpy

Read more here:  http://www.newsobserver.com/news/local/community/durham-news/article24691264.html

Wednesday, May 27, 2015

Photos: Mary&Pat

Indigo Bunting (Rackspace Bldg. 31C).

Working on ID (Bldg. 7E/A)

Cedar Waxwing remains (Bldg. 7E/A).

Wednesday, May 20, 2015

NEW SPECIES - Killdeer

Photos: Mary&Pat
 NEW SPECIES:  Killdeer (Bldg. 7C).

Northern Flicker (Bldg. 7E).

Proposed Legislation Could Prevent Millions of Bird Deaths

“Building collisions are certainly among the greatest man-made killers of birds. Three hundred million to one billion birds or more die each year from collisions with glass on buildings—from skyscrapers to homes. While this legislation is limited to federal buildings, it’s a very good start that could lead to more widespread applications of bird-friendly designs elsewhere,” said Dr. Christine Sheppard, ABC Bird Collisions Campaign Manager.

In the most comprehensive study of its kind, “Bird–building Collisions in the United States: Estimates of Annual Mortality and Species Vulnerability” published in January 2014, the species most commonly reported as building kills (collectively representing 35 percent of all records) were White-throated Sparrow, Dark-eyed Junco, Ovenbird, and Song Sparrow. However, the study found that some species are disproportionately vulnerable to building collisions. Several of these are birds of national conservation concern and fall victim primarily to certain building types. Those species include:
  • Golden-winged Warbler and Canada Warbler at low-rises, high-rises, and overall
  • Painted Bunting at low-rises and overall
  • Kentucky Warbler at low-rises and high-rises
  • Worm-eating Warbler at high-rises
More here:  http://www.abcbirds.org/newsandreports/releases/150513.html