And interesting read regarding the recently released bird study: http://www.alleycat.org/page.aspx?pid=945
...published in the Journal of Ornithology1, is a limited study that cannot be extrapolated to represent the complex cat-bird dynamic nationwide. Much more disturbing, however, is how this data has been manipulated to malign cats and used widely to dredge up a false and counterproductive debate.
'It is absurd to think that a minor study conducted on a single species of bird in a small area of suburban Maryland could accurately be used to characterize the relationship between cats and birds in landscapes all over America.'
(Click on the above link to read the entire article).
EXAMPLE OF SUCCESS: Cimeron Morrissey, Project Bay Cat
Feral cat and bird lovers can find a solution by collaborating. Cimmeron's program is setting an example around the world as an effective and compassionate way to manage homeless cats while protecting birds and the environment. The program protects wildlife living nearby. Ten wooden feeding stations were built for the cats by Homeless Cat Network and installed along the trail away from wildlife habitats. The program’s effectiveness is a result of keeping the cats well-fed and concentrated away from avian nesting sites.
You can read more about her program here: http://www.cimeron.com/page3/page3.html