Daniel Klem Jr. is a United States ornithologist, known for his pioneering research into the mortality of birds due to glass windows. He is currently a Sarkis Acopian Professor of Ornithology and Conservation Biology at Muhlenberg College.

His research has influenced the design of buildings, not least the Niagara Falls State Park Observation Tower, on which he was a design consultant. He holds several US patents relating to windows design. He has also written about the birds of Armenia.

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— Carlton Sparks, Ornithologist

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With an adaptive green approach and unified mindset, we as humans can transform one of the world's leading issues on bird mortality as it pertains to policy all over the world. We are currently seen it most effectively take root in Canada... (more text here).


Dr. Klem partners with organizations and cities all around the world to bring awareness to this cause.  Today, more and more scientists, architects, and green energy enthusiasts are becoming increasingly more interested in this topic and are looking to build partnerships to build awareness. Below are some of the existing partnerships already formed.

" Man has gone out to explore other worlds and other civilizations without having explored his own labyrinth of dark passages and secret chambers, and without finding what lies behind doorways that he himself has sealed. "

— Carlton Sparks, Executive Officer

Engineering Bird-Friendly Glass on PBS (scitech)now

Every year hundreds of millions of birds die from accidentally flying into glass buildings and windows. But now, new types of glass may make this easily preventable. Daniel Klem, Professor of Ornithology and Conservation Biology at Muhlenberg College in…

The Cornell Lab of Ornithology: Why Birds Hit Windows—And How You Can Help Prevent It

Between 365 and 988 million birds die from crashing into windows in the United States each year, according to a new report. That may be as much as 10 percent of the estimated total bird population of the country.

Bird–Window Collisions: A Critical Animal Welfare and Conservation Issue, Journal of Applied Animal Welfare Science, 2015

Sheet glass and plastic in the form of clear and reflective windows are universally lethal to birds. Reasonable interpretation of available scientific evidence describes windows as a principal human-associated avian mortality factor that is an indiscriminate…

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