Mudcat Café message #3070855 The Mudcat Café TM
Thread #134719   Message #3070855
Posted By: JohnInKansas
09-Jan-11 - 06:27 PM
Thread Name: BS: What's killing thou's of birds&fish- Arkansas?
Subject: RE: BS: What's killing thou's of birds&fish- Arkansas?
Gaseous poisoning does not produce evidence of "blunt force trauma prior to ground impact" that was reported in all of the autopsy reports on the birds in these recent kills.

Bird-to-bird collisions, or collisions with objects at "flying speed," are consistent with the reports, and are likely to be easily distinguished from ground impact injuries. Body densities (ballistic coefficients) for falling dead/disabled birds predict generally low ground impact speeds inconsistent with the initial injuries that the reports identified as the causes of the deaths, although it's possible that some crippled birds hit the ground alive and were "finished" by the ground impact or by "bleeding out" on the ground.

There have been several reports of "methane bubbles" rising from lakes or bogs, and they have killed large numbers of people and animals in isolated incidents; but there is no evidence that any phenomenon of that kind was involved in the recent reports and there are no likely sources in the multiple and varied places where the bird kills have been reported.

Explosion or spontaneous burning of the batteries in the laptops (or modern GPS-capable cell phones) the birds were using for navigation could present an explanation, since the lithium oxide released when lthium batteries self-destruct can induce "psychotic behavior" in those exposed, and the birds might have been rendered subject to "poor judgement" relative to the avoidance of other birds in the flock. So far as I know, there's no valid information on the relative susceptibility of birds vs airline pilots to these effects.