Bird Songs and Spectrograms of Southern Tuscany
- Marco Dragonetti’s collection of bird song recordings (.wav format), and their spectrograms, recorded in Italy.
- http://www.birdsongs.it

Moore, Frank
- Southern Mississippi University group that focuses on the ecophysiology, behavior and ecology of migrant landbirds during passage.
- http://www.usm.edu/mbrg/

Simons, Theodore R.
- Biography and publications about the ecology and conservation of Southern Appalachian Neotropical migrant birds.
- http://www4.ncsu.edu/unity/users/s/simons/www/simons.html

Nowicki, Steve
- Researcher at Duke University in North Carolina that studies the ecology and evolution of animal behavior, with an emphasis on birds.
- http://www.biology.duke.edu/nowicki/

McGowan, Kevin J.
- Behavioral ecologist that studies birds, especially the social behavior of crows (Corvus) in Ithaca, New York.
- http://www.birds.cornell.edu/crows/

González-Solís, Jacob
- Research on seabirds at the University of Barcelona in Spain. Includes publications and images galleries.
- http://www.gonzalez-solis.com/

Erritzoe, Helga and Johannes
- General data about bird research and their books, including "The Birds of CITES" and "Pittas of the World".
- http://www.birdresearch.dk/gb/gbmenu.htm

Velando, Alberto
- European Phalacrocorax aristotelis and seabird studies at the University of Vigo in Galicia, Spain.
- http://webs.uvigo.es/avelando/