Great Lakes HummerNet
2006 Michigan 
Ruby-throated Hummingbird Observer Data

 

Spring (March 1 - May 31)
Summer (June 1 - July 31)
Autumn (August 1 - November 30)
Winter (December 1 - 31)

Spring 2006

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Summer 2006

 

Autumn 2006

 

 

Winter 2006