Graph

Northern Harrier
(Circus hudsonius)

Breeding Bird Survey (BBS) - Canadian analysis

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

Geographic area or population: Boreal Hardwood Transition

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
19700.1510.1030.233
19710.1430.0930.213
19720.1420.0940.213
19730.1350.0910.2
19740.1370.0930.202
19750.1330.0890.196
19760.1320.090.193
19770.130.090.196
19780.1330.0960.194
19790.1270.090.181
19800.1270.0890.177
19810.1210.0840.165
19820.1240.090.176
19830.120.0890.169
19840.1210.0920.167
19850.1140.0820.149
19860.1140.0850.157
19870.120.0920.177
19880.1130.0840.156
19890.1080.080.146
19900.1150.090.166
19910.1050.080.136
19920.1040.0780.136
19930.1090.0840.158
19940.1060.0830.142
19950.1020.0790.134
19960.0980.0750.127
19970.1010.0790.133
19980.0920.0680.12
19990.0950.0730.127
20000.090.0660.115
20010.0940.0730.123
20020.0920.0690.127
20030.0910.070.125
20040.090.0680.12
20050.0870.0670.117
20060.090.070.13
20070.0870.0650.124
20080.0850.0640.114
20090.0820.060.109
20100.0770.0550.102
20110.0810.060.115
20120.0780.0570.106
20130.0750.0540.102
20140.0770.0570.107
20150.0780.0570.109
20160.0750.0530.108

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