Grouse Legged Wild Pigeon

I work in downtown Detroit, Michigan (in the U. S.).  Today I was walking toward my place of business along Michigan Avenue by Cass Avenue when I saw a wild pigeon with grouse legging.  I wish I had a camera with me.  

I couldn't examine him that closely but it was a blue bar and it looked pretty much like wild type other than the presence of grouse legging.  

I always thought that these sorts of mutations must occur naturally but it was still a bit of a surprise to see a wild pigeon with it.

9:40:43 PM  #  
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