It has taken thousands of hours of recording and collecting bird songs and bird calls. For all the recordings, sonograms were generated using Sonogram Visible Speech. More time has been spent drawing the maps and the bird ranges along with writing the descriptions. Who is behind all of this? The answer lies below.

Dr. Pierre Deviche is the man behind the bird recordings you are able to hear. He is a professor in the School of Life Sciences at Arizona State University. He has graciously given permission to Ask A Biologist to use the recordings in this module. 

Dr. David Pearson is the person that spent countless hours working on the range maps and writing the bird descriptions. He is a Research Professor in the School of Life Sciences at Arizona State University.

Dr. Biology is the person behind the sonograms and the development of the module. 

Finally, the images of the birds are made possible by the photographers in the birding community. We are very thankful for their interest in this project.

Copyright and Permissions

Please keep in mind that all the recordings are copyrighted by Dr. Deviche and the rest of the module by Ask A Biologist, except where noted (such as individual bird credits). If you want to use these materials please consult our Permissions Form. 

Do you want to learn more about birds? 

If you would like to learn more about birds we suggest you try the following references. These are the books we used as references when creating the range maps and the species accounts. 

Ehrlich, Paul, David Dobkin and Darryly Wheye (1988) The Birder's Handbook: A Field Guide to the Natural History of North American Birds. Fireside with Simon and Schuster, New York. 

Howell, Steve and Sophie Webb (1995) A Guide to the Birds of Mexico and Northern Central America. Oxford Univ. Press. Oxford, UK 

National Geographic Society (2002) National Geographic Field Guide to the Birds of North America (4th Edition). National Geographic Society, Washington, DC 

Sibley, David (2003) The Sibley Field Guide to Birds of Western North America. Alfred A. Knopf, New York.

Want to create your own sonogram images from sound files?

Here is the link to the free software we used to generate the sonograms of the bird recordings. 

Sonogram visible speech