These Noctilucent Clouds (NLCs) were photographed on June 17, 2012 in Szubin, Poland. On top of the pole in the foreground are nesting storks. Each year in late spring-early summer, thousands of storks (Ciconia ciconia) arrive in Poland for nesting. Their arrival coincides with the summer onset of noctilucent clouds. Image courtesy of Marek Nikodem.
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