Graph

Common Tern
(Sterna hirundo)

Great Lakes Decadal Colonial Waterbird Census

Additional information on: Great Lakes Decadal Colonial Waterbird Census

Geographic area or population: Great Lakes

Graph showing the trend of the species through out the observed years
 
Listing of the individual data points that make up the graph
YearEstimated number of nests
19768566
19896551
19975728
20075032

Notes on numeric data: Ex represents 10 to the power of x; For example 1.2345E-2 is equivalent to 0.012345