They got this kind of data on the European Common Swift a few years back. But this now shows the American Black Swift does the same amazing things.

Larry Schwitters
Issaquah


> On Mar 21, 2022, at 10:00 AM, Robert O'Brien <baro at pdx.edu> wrote:

>

> This of course is the Eurasian Swift, Apus apus not the North American Black Swift that we have here on the West Coast. But who knows? It had already been established that Apus apus can stay aloft for long periods of time . But the time reported in this study is astounding. Bob OBrien Portland

>

>

> On Sunday, March 20, 2022, Dan Reiff <dan.owl.reiff at gmail.com <mailto:dan.owl.reiff at gmail.com>> wrote:

> Very interesting!:

>

> https://www.sciencedaily.com/releases/2022/03/220317111903.htm <https://www.sciencedaily.com/releases/2022/03/220317111903.htm>

>

> Dan Reiff

> MI

> Sent from my iPhone

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