As part of an offshoot to another thread here are links to some interesting and recent discoveries relating to bird song. The article about White Crowned Sparrows changing the pitch of there songs in relation to the density of foiage is particularly interesting. Also there seems to be evidence that females of the song bird species are programmed during the juvenile period as to which songs sound the `sexiest` to them by listening and remembering the best `local` examples (local being the key to `song type shift` in isolated pockets of subspecies).
Enjoy and please do contribute with any links you may have found also.
There are some links to related studies on birdsong contained withing the webpage as small extracts next to the main body of words which look equally educational (just reading those now)
http://www.sciencedaily.com/releases/20 ... 114710.htm
http://www.sciencedaily.com/releases/20 ... 072517.htm
