MD Osprey:

Check out this excellent free web site from the USGS Breeding Bird 
Survey (BBS) team ... I think you will find it to be an invaluable 
reference. It features multiple vocalization recordings for each species.

         http://www.natureinstruct.org/dendroica/

About Dendroica

Dendroica is an interactive website developed to help students, 
volunteers and professionals improve their skills at identifying 
birds by sight or by sound, particularly so that they can participate 
in nature survey and monitoring programs. The site includes birds 
from throughout Canada, USA, and Mexico. Participants can contribute 
new photographs and sound recordings so it will continue to improve over time.

Dendroica allows you to browse through lists of species found in a 
particular region to see their pictures and listen to their songs and 
calls. You can then quiz yourself, based on songs or photos or both, 
to see how well you have learned the species. You can develop your 
own custom list of species for study.

To use all of the features of the program, including the quiz, or to 
submit your own photos or sound recordings, you must register and 
sign in. Registration is free, and only requires that you provide 
your name and a valid E-mail address.

If you prefer, you can continue as a guest, without logging in. This 
will allow you to browse through the list of species, see the 
photographs and listen to the songs. However, several features such 
as the quiz and the selection of customized lists to study particular 
groups of species will not be available.



==================================
Phil Davis      Davidsonville, Maryland     USA
                 mailto:[log in to unmask]
==================================