On my birding treks this winter I have noticed a significant unexplained decrease in the common Northern Cardinal in my local forest.Here is a portrait I took last winter when just about every bird you saw was a cardinal.
Techs: Canon 20D , 500mm F4 IS ,1.4 T/C ISO 200 1/500 at f5.6 partial metering natural overcast lighting.Thanks for looking
Tim






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