of birds, wind mills and global warming...
There is a report done for the Tassie Hydro in regard to birds being killed by wind turbines... Of course the numbers are quite small (and can be counted on one hand on a good decade) as most of the bird species know how to avoid being hit by the spinning blades... But the monitoring goes on in order to get accurate statistical data...
Far more birds get killed by other stuff...
I suppose you know the joke about the Northern territory crows that get killed on the roads in far greater numbers by trucks than cars because their designated look-out in the tree by the side, only knows how to say "Cah, Cah" and does not know how to say "truck"...
In fact, there is reason to believe that far more birds are killed and will be killed by global warming... For example, the strong southerly in Sydney yesterday was shaking the top of trees like you would not believe... If your house is in one of those, your nest is likely to be destroyed. Same with bush fires... Your nest goes up in flame and you abandon ship... Your brood is lost. Having this increasingly more often due to global warming will stress bird population more and more — in more areas... Loosing more broods eventually places some common birds on the endangered list.
Far more birds are killed by cats, wild and domesticated, than by wind turbines...