Graph

Boreal Chickadee
(Poecile hudsonicus)

Breeding Bird Survey (BBS) - Canadian analysis

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

Geographic area or population: North America

Graph showing the trend of the species through out the observed years
 
Listing of the individual data points that make up the graph
YearAnnual IndexLower limitUpper limit
19700.7050.5121.03
19710.7010.5131.02
19720.7070.5131.01
19730.710.5180.998
19740.7110.520.996
19750.7230.5390.998
19760.7340.5411.03
19770.7210.5291.03
19780.730.5331.09
19790.7230.5411.01
19800.7190.5380.991
19810.710.5430.977
19820.6860.5240.9
19830.760.5891.04
19840.7410.5641.02
19850.7450.5751.01
19860.7530.5960.988
19870.7340.5820.929
19880.750.5871.02
19890.7270.580.949
19900.7870.6331.04
19910.7270.5830.907
19920.7640.6120.972
19930.750.6110.933
19940.7560.6280.931
19950.7250.5870.884
19960.7480.6130.91
19970.8040.6621.03
19980.8310.6781.1
19990.820.6821.02
20000.7820.6530.981
20010.830.6891.04
20020.7770.6280.98
20030.8540.7121.08
20040.9320.7731.21
20050.8520.6981.09
20060.8350.6811.06
20070.9820.8091.23
20080.7910.6450.973
20090.7820.6330.973
20100.9930.8221.24
20110.8690.7111.07
20120.8290.6651.03
20130.7920.6340.976
20140.9270.7551.13
20150.8880.731.09
20160.9780.7971.22

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