As regular CFZ-watchers will know, for some time Corinna has been doing a column for Animals & Men and a regular segment on On The Track... particularly about out-of-place birds and rare vagrants. There seem to be more and more bird stories from all over the world hitting the news these days so, to make room for them all - and to give them all equal and worthy coverage - she has set up this new blog to cover all things feathery and Fortean.

Wednesday 19 February 2020

Radar captures huge bird migration over Florida

A huge swarm of birds migrating is nothing unusual - flocks can fly thousands of miles undetected.

But in a rare event on Monday, US National Weather Service radar captured birds migrating from South America over Florida.

Atmospheric conditions caused the systems to detect the birds, which took hours to fly over the Key West station.

The group measured at least 90 miles (145km) in radius, according to meteorologists.

In 2017 a swarm of migrating Printed Lady butterflies was detected by radar over Colorado, but the phenomenon is rare.

A GIF produced by the Weather Service shows the migrating birds in green and yellow, and rain depicted in blue.

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