2002 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)

Comparison of 2001 and 2002 data

Spring 2002

Summer 2002


Autumn 2002


Winter 2002