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More Bohemian Waxwing photos
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Great Horned Owl
February 18, 2011
Photo taken near Lancaster Park, 01
, Feb 18 2011
So, why to some birds and some critters wear masks?
, Feb 19 2011
-Good question! I searched high & low ("Googled"), to see if there was any literature on facial- mask coloration; much of what comes up is related to mask protection for avian flu! :o)) --however, this link, which represents a summary of the complete document, shows promise: ( http://adsabs.harvard.edu/abs/1979RSPTB.287...63B ) -the hypothesis is that it is related to initiating negative response mechanisms in the predator! (kinda like when the Eastern Tiger Swallowtail caterpillar suddenly brings it's head up, with those two prominent "eye" spots, to make a predator think twice about eating it!)
, Feb 21 2011
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