Ts,
Also note the links at the end of this article.
For example the One in Wired magazine.
Dan


> On Jul 13, 2018, at 11:28 PM, Dan Reiff, PhD <dan.owl.reiff at gmail.com> wrote:

>

> Tweets,

> I found this to be an interesting article.

> Best regards,

> Dan Reiff

>

>

> https://idahobirds.net/birding-idaho/cassia-crossbill/

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