6 September 2014 – 2 Wilson’s Warblers amidst a major fallout


Avian Window Kills

Our first decent cold front of the summer came through last night just as the sun was going down, and this one brought some actual rain.  Thus, by about 9:00 pm, conditions were ripe for a major fallout of migrants as the ceiling lowered and the rain and storms moved in.  At time of writing, we’ve now had about 13 hours of steady rain. From Paul Hurtado’s radar ornithology page, these images show the impressive flight underway last night and the rain slicing through central Oklahoma that was forcing birds down.

Composite radar image from just after 9:00 pm last night.  Check out the impressive flight going on especially along the western shore of Lake Michigan. Composite radar image from just after 9:00 pm last night. Check out the impressive flight going on especially west of Lake Michigan. In this image from about 7:00 this morning, the rain hasn't really moved but the birds have put down for the day. In this image from about 7:00 this morning, the rain hasn’t really moved but the birds have largely put down for the day.

While that rain was starting up last night, I heard an Upland Sandpiper…

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