19 May 2009 - The University of Florida at Gainesville, USA, carried out a study on the cognitive skills of birds. Scientists studied mockingbirds, which are usually very courageous in their reaction to intruders who come too close to their nests. This behavior would be very stressful for birds in crowded places unless they were able to distinguish between individual persons. Researchers discovered that birds were able to differentiate people who had previously come too close to their nests from other people in a crowd. For the study, scientists had people climb trees in highly frequented areas and touch the nests. Even when they were later dressed differently, or in the company of other people, they were recognized by the birds, who left their nests much sooner than when others passed by.
vogelstimmen.de offers thousands of free links to recordings of birdsongs from a list of over 10000 birds. You can search the database of recordings with just two clicks. Start learning about or expanding your knowledge of birdsongs.
Do so with the CDs listed under Recordings. These enable you to identify birdsongs anywhere and without having to go online. >>
If you need something pleasing to the ear, but are only familiar with blackbirds, finches, and starlings, click on Examples, where you will find listening suggestions. You can email them to friends or use them as a basis for a new and more detailed search >>.
Perhaps one day I'll get around to adding a new category called Most Beautiful Recordings or something along those lines. Not really meant for bird lovers, but rather to offer something soothing for the soul.