Questions tagged [butterflies]

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Butterfly Migration over Lassen Peak

Roughly 10 years ago I hiked up Lassen Peak in Northern California, and there was a huge (hundreds of thousands) butterfly migration going right over the top of the peak around this time of year. It ...
8
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What is a butterfly tag, and what's the procedure for applying it?

I was recently told that there are organizations, at least in the United States, that study migration of monarch butterflies by tagging them. The purpose, as in most animal migration monitoring, is to ...