3 ms·
> Willow ptarmigan carcasses were excluded from the analyses as these are known to collide with the tower base (see Stokke et al., 2020[1]) How?! It takes some
by ordu 4y ago
> Willow ptarmigan carcasses were excluded from the analyses as these are known to collide with the tower base (see Stokke et al., 2020[1])
How?! It takes some mental effort to not blame victim in this situation.
The article linked gives only one actual observation of bird managing to kill itself this way:
> it was observed that one individual, part of a group of 10 birds, crashed directly into the tower base at 2.7 m height above ground (25 September 2011, at 07:05 a.m.). The rest of the group passed the tower on both sides.
[1] https://onlinelibrary.wiley.com/doi/10.1002/ece3.6307 https://onlinelibrary.wiley.com/doi/10.1002/ece3.6307
- anovikov 4y agoBirds may be badly disoriented when seeing the moving blades close by. Not at all surprised. Their sense of perspective, distance and speed may fail them badly when seeing an object bigger than they were instinctively supposed to ever meet, moving faster and on unusual trajectory.
- ajuc 4y agoBirds are colliding with skyscrappers and bridges all the time despite no moving parts.
- pjc50 4y agoDo not underestimate how stupid some birds can be. Corvids are intelligent, pigeons not so much.
- Zobat 4y agoI think they excluded birds colliding with the base as that was suspected to be unrelated to the actual turbine blades. Removing confounding variables is part of statistics and always up for debate but the article/paper did not measure the effects on birds colliding with wind turbine bases, just birds killed by turbine blades. Then again, a lot of bad research results have come from ignoring the "right" data points.