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gavin
27-12-2016, 01:42 PM
Annual migrations above us ....

http://www.sciencemag.org/news/2016/12/radar-spots-trillions-unseen-insects-migrating-above-us

Mellifera Crofter
27-12-2016, 09:52 PM
Nice link, thanks Gavin. Next time I see geese fly overhead, I'll picture 20,000 invisible reindeer flying overhead. (Santa's?).
Kitta