Every time a Eurasian Collared Dove visits our bird bath in southeast Aurora, it leaves behind a large, nasty, white "slick" floating on the surface of the water. If we don't change the water right away, eventually the substance sinks to the bottom. Does anyone know what causes this phenomenon? It seems like the birds must be coated with some kind of dust or powder.
Thanks for your help. Jean Stevenson, Aurora CO
=J=
=J=
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