. Ardea herodias . 
Lake Umbagog, Maine. 
1896. In most places (at Leonard's Pond) where the water is 
Sept. 7. less than two feet deep and the bottom sandy or muddy, I see 
the tracks of the Great Blue Herons. The huge foot prints, 
evenly spaced, suggest the presence of some big, submarine 
bird. They are often found one hundred feet or more out from 
the shore. 
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