This evening, I observed foraging under my feeder a White-throated Sparrow with what appeared to be an abnormally enlarged crop -- it looked rather like it had a goiter. It didn't appear to be having difficulty feeding, even though it looked like it had tried to swallow half a golf ball.
Any theories on what might be going on with this bird?
Lewis
--
Lewis Barnett -- Chair, Dept. of Math & CS, U. of Richmond, VA 23173
-- lbarnett@xxxxxxxxxxxx | lbarnett@xxxxxxx
-- http://www.mathcs.richmond.edu/~lbarnett/
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