Graph

Common Nighthawk
(Chordeiles minor)

Breeding Bird Survey (BBS) - Canadian analysis

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

Geographic area or population: Boreal Taiga Plains

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
19700.6570.2871.52
19710.6640.321.62
19720.6150.2921.33
19730.6510.3351.47
19740.5590.2791.31
19750.470.2251.04
19760.5030.2561.14
19770.4640.2240.931
19780.5150.2841.16
19790.4070.2160.88
19800.4470.2410.989
19810.3490.1890.668
19820.3270.1730.592
19830.3340.1870.668
19840.3270.180.693
19850.3210.1820.629
19860.2470.1210.461
19870.2770.1490.564
19880.2630.1470.527
19890.2240.1170.416
19900.2090.1120.376
19910.2770.1660.569
19920.2470.1340.517
19930.2190.1310.48
19940.1710.0970.285
19950.1720.0950.313
19960.1650.0890.292
19970.1560.0860.294
19980.1490.0780.277
19990.2050.1250.428
20000.140.0830.248
20010.1180.0630.201
20020.1230.070.213
20030.1250.0720.231
20040.1080.0620.193
20050.1090.0590.196
20060.0950.0490.184
20070.0960.0520.17
20080.0920.0510.186
20090.0780.0370.151
20100.080.0410.149
20110.0710.0340.135
20120.0810.0420.183
20130.0690.0340.157
20140.0730.0360.161
20150.0860.0450.217
20160.0590.0270.12

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