I'm not sure where I encountered this, but it is a really interesting (and entertaining) animal behavior.
Watch a Black Heron Fool Fish by Turning Into an Umbrella
" “It could also be argued that the lure of both the shade and the bright feet now work in tandem to attract fish into gobbling range,” Evans says. “It would be interesting to see an experiment that manipulated foot color and investigated how it affected canopy feeding success.”
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