Wind Turbine Bird & Bat Mortality Reports, with Summary – Ontario, Canada

Below is a summary Maureen kindly assembled from all of the reports retrieved through the FOI. Have a good hard look at the numbers per project. Individually, these projects have got off scot free – they have never been challenged, never been questioned, never been charged, or even slapped on the wrist for these astounding kills. Dan tallied the actual raptor deaths on the right hand side, as many raptor deaths were ignored as “incidental” – not killed at the right time/place…more on that later. There is much more to glean from these reports – please share what you gather. This is a draft that will be added to and amended as we go.

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Full list of Bird and Bat Mortality Reports

7 thoughts on “Wind Turbine Bird & Bat Mortality Reports, with Summary – Ontario, Canada

  1. I noticed with the Harrow Project that the first post construction study showed a level of bat kill that exceeded by almost twice the “allowable” limit. Naturally the study they did 3 years later showed that they were @ the limit. I also noticed that the assessment time was adjusted to earlier in the season and the actual numbers are adjusted based on their retrieval rate for that project using not only dead carcasses but hockey tape forms of bats. What animal like coyotes who use their olfactory senses to track down prey, will go after a bat look-alike smelling of chemical adhesives??? What a joke!!!

  2. We also know that these projects do not use a large enough assessment area (only 50 metres around the base of the turbine), so the numbers are not indicative of the true mortality rates, so how do we use this information??

  3. Do we know if the timing of the data collection is such that predators haul the carcasses away during the night, thus skewing the data?

  4. Bird mortality counts only done June thru September? What abut the spring migratory season which can begin in mid-March, depending on the weather, in southwestern Ontario.

    For example, robins return when there is about 12 hours of daylight and stay until this amount of daylight gets back to 12 hours again. So 12 hours to 12 hours season for robins. Other bird species can be checked for the amount of daylight they require to survive.

    Eagles are migratory birds. Have seen eagles pick smaller birds right out of the air. They also fish. So they like open water and will migrate to areas where there is open water. They follow their food sources.

    • They only count for half a year, at only some of the turbines, during only some of the days of the week. You get the picture.

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