I've been studying the frequency of rainbows vs halos and my observations have halos as the clear winner. I wonder though if location plays a larger role in this. Winter rainbows aren't common in Alberta, Canada so we were very pleased to come across one on a recent trip to Waterton Lakes National Park. I think it's a first for me—a January rainbow!

Nikon D7200 with Tamron 70-200 @190mm

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