Graph

Boreal Owl
(Aegolius funereus)

Picture of logo Christmas Bird Count (CBC)

Additional information on: Christmas Bird Count (CBC)

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
0.009 0.069
Listing of the individual data points that make up the graph
YearAnnual indexLower limitUpper limit
19700.0070.0010.093
19710.0080.0010.074
19720.0080.0010.069
19730.0080.0010.076
19740.0090.0010.076
19750.010.0010.078
19760.010.0010.084
19770.0110.0010.084
19780.0110.0010.086
19790.0120.0010.104
19800.0130.0010.101
19810.0130.0010.095
19820.0140.0010.119
19830.0150.0010.11
19840.0150.0010.11
19850.0170.0020.116
19860.0160.0020.103
19870.0170.0020.104
19880.0210.0020.131
19890.0180.0020.112
19900.0240.0030.153
19910.0250.0030.146
19920.0260.0030.155
19930.0280.0040.208
19940.0380.0050.253
19950.030.0040.177
19960.0350.0050.202
19970.0510.0070.347
19980.0480.0060.304
19990.0510.0070.327
20000.0520.0070.318
20010.0640.0090.459
20020.060.0080.388
20030.0680.010.424
20040.0940.0120.771
20050.0540.0080.288
20060.0650.0090.362
20070.0540.0080.275
20080.0690.010.362
20090.0550.0070.291
20100.0740.0110.395
20110.0670.0080.351
20120.0840.0120.445
20130.0640.0080.334
20140.0760.010.4
20150.0910.0130.456
20160.0740.0090.391

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