Dr. Daniel Klem Jr's website
Dr. Daniel Klem Jr's website
  • Home
  • In the News
  • About
  • Contact
  • Search

© 2025 Daniel Klem Jr.. All rights reserved

Most Recent

October 6, 2015

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…


by admin

January 1, 2013

Evaluating the Effectiveness of Select Visual Signals to Prevent Bird-window Collisions, The Wilson Journal of Ornithology, 2013

When you are alone for days or weeks at a time, you…


by admin

September 9, 2012

Direct human-caused mortality of birds: improving quantification of magnitude and assessment of population impact. Scott R Loss, Tom Will, and Peter P Marra Front Ecol Environ 2012; doi:10.1890/110251, 2012

When you are alone for days or weeks at a time, you…


by admin

January 5, 2012

Factors influencing the annual risk of bird–window collisions at residential structures in Alberta, Canada. Wildlife Research 39, 583–592. Erin M. Bayne Corey A. Scobie and Michael Rawson-Clark, 2012

When you are alone for days or weeks at a time, you…


by admin

January 3, 2012

Scavenging affects persistence of avian carcasses resulting from window collisions in an urban landscape. Journal of Field Ornithology 83 (2):203-211. Stephen B. Hagar, Bradley J. Cosentino, and Kelly J. McKay, 2010

When you are alone for days or weeks at a time, you…


by admin

January 2, 2010

Klem, D., Jr. Conservation issues: Sheet glass as a principal human-associated avian mortality factor, Chapter 20. In S. K. Majumdar, T. L. Master, R. M. Ross, R. Mulvihill, M. Brittingham, and J. Huffman [eds.], Avian ecology and conservation: A Pennsylvania focus with national implications. Pennsylvania Academy of Science, Easton, PA, 2010

When you are alone for days or weeks at a time, you…


by admin

January 1, 2010

Avian Mortality at Windows: The Second Largest Human Source of Bird Mortality on Earth. Proceedings of the Fourth International Partners in Flight Conference: Tundra to Tropics. Pgs 244-251, 2010

When you are alone for days or weeks at a time, you…


by admin

ABOUT DR. DANIEL KLEM JR.

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.

LATEST NEWS & MEDIA

  • A Conversation with National Audubon Society November 16, 2021
  • Engineering Bird-Friendly Glass on PBS (scitech)now January 8, 2018
  • The Cornell Lab of Ornithology: Why Birds Hit Windows—And How You Can Help Prevent It May 5, 2017
  • Bird–Window Collisions: A Critical Animal Welfare and Conservation Issue, Journal of Applied Animal Welfare Science, 2015 October 6, 2015
  • Science News: Stop blaming cats: As many as 988 million birds die annually in window collisions February 3, 2014

RESEARCH

  • A Conversation with National Audubon Society
  • Human Related Mortality of Birds in the United States. U.S. Department of the Interior, Fish and Wildlife Service, Special Scientific Report- Wildlife No. 25. Richard C. Banks, 1979
  • Avian predators hunting birds near windows. Proceedings of the Pennsylvania Academy of Science 55: 90-92. Daniel Klem, Jr., 1981

TAGS

Animal Behavior Conservation Ecology Evolution Green Architecture Natural History of Animals Ornithology Special Attention Given to Vertebrates Statistics Sustainability Wildlife Mortality Resulting from the Actions of People
© 2025 Daniel Klem Jr.. All rights reserved

Privacy Preference Center

Privacy Preferences