Strange Blue Heron Behavior

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On Sunday 1 November, at Centennial Lake, a group of Howard County Birders
observed unusual behavior by 2 blue herons.  The herons were on the lake
within about 50 feet of each other.  Several flocks of canada geese flew over
the lake, the herons looked up at the geese, with one heron lifting one wing
and the other heron lifting first one and then both wings while moving around
in circles.  They kept this up for 4 or 5 minutes until the geese finished the
over flight.  None of the geese landed.

Has anyone seen this type of behavior before?  We hypothesized that the herons
were trying to look threatening to keep the geese away which must have
worked..

Jeff Friedhoffer

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