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 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
19700.1540.0920.263
19710.2010.1260.383
19720.1370.0850.222
19730.130.080.213
19740.1190.0680.203
19750.1180.0720.199
19760.1210.0640.296
19770.1030.0620.167
19780.1230.080.222
19790.0960.0530.176
19800.0860.0470.148
19810.0860.0530.14
19820.1030.0670.197
19830.1190.0690.283
19840.0710.0410.113
19850.0730.0450.117
19860.0660.0370.106
19870.0710.0470.126
19880.0660.0420.11
19890.0580.0350.093
19900.0570.0340.093
19910.0530.0310.084
19920.0490.0290.078
19930.050.0320.086
19940.0510.0320.091
19950.0410.0240.069
19960.040.0220.066
19970.0380.0220.063
19980.0420.0250.08
19990.0360.020.059
20000.0370.0230.066
20010.0350.020.062
20020.0350.0210.07
20030.0290.0150.048
20040.0290.0160.05
20050.0290.0170.058
20060.0250.0130.043
20070.0240.0120.041
20080.0240.0140.042
20090.0220.0120.039
20100.0240.0140.05
20110.020.0110.037
20120.0190.010.035
20130.020.0110.04
20140.0190.010.037
20150.0180.010.037
20160.0170.0090.032

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