Graph

Eastern Wood-Pewee
(Contopus virens)

Breeding Bird Survey (BBS) - Canadian analysis

Additional information on: Breeding Bird Survey (BBS) - Canadian analysis

Geographic area or population: Canada

Graph showing the trend of the species through out the observed years
 
Listing of the threshold values that appear on the graph
Population below lowest acceptable levelGoal
1.592 2.123
Listing of the individual data points that make up the graph
YearAnnual IndexLower limitUpper limit
19702.272.032.6
19712.221.992.5
19722.131.932.4
19732.051.842.31
19741.991.792.23
19751.871.682.07
19761.851.672.04
19771.791.631.99
19781.81.641.98
19791.751.61.94
19801.731.591.92
19811.671.531.84
19821.611.481.77
19831.61.471.75
19841.571.441.73
19851.521.411.67
19861.451.331.57
19871.411.31.53
19881.411.31.54
19891.351.261.47
19901.31.21.42
19911.271.181.37
19921.241.151.34
19931.21.121.29
19941.161.081.25
19951.151.071.23
19961.11.031.18
19971.091.021.17
19981.030.9571.1
19991.030.9581.1
20000.9970.9351.07
20010.9690.9011.04
20020.9170.8450.982
20030.9110.8430.986
20040.890.8290.969
20050.8720.8160.938
20060.8410.7760.917
20070.8280.770.891
20080.8060.7520.873
20090.790.7320.852
20100.7790.7240.844
20110.7460.690.809
20120.760.70.836
20130.7450.6880.818
20140.7290.670.803
20150.6850.6330.744
20160.6620.6060.722

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