Graph

Great Horned Owl
(Bubo virginianus)

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
19700.3620.210.692
19710.350.2110.637
19720.3640.2280.651
19730.3550.2310.626
19740.3220.1990.541
19750.3180.2050.546
19760.3050.1940.524
19770.3130.2050.529
19780.2990.1930.51
19790.2770.1780.442
19800.2780.1880.46
19810.2820.190.5
19820.2770.1890.481
19830.2740.1890.448
19840.270.1830.479
19850.2390.1640.383
19860.2280.1510.346
19870.2250.1490.357
19880.2130.1440.33
19890.2150.1460.317
19900.2160.1520.356
19910.2110.1420.338
19920.2180.1460.364
19930.1910.1310.325
19940.1970.140.294
19950.1760.1190.357
19960.1750.1190.263
19970.1650.1120.237
19980.1630.1110.234
19990.1690.1170.261
20000.1650.1160.244
20010.1620.1120.291
20020.1480.0990.232
20030.1470.0990.237
20040.1440.0960.216
20050.140.0940.223
20060.1450.0960.234
20070.1260.080.188
20080.1270.0830.199
20090.130.0870.216
20100.1220.0780.199
20110.1190.0780.193
20120.1210.080.194
20130.1170.0760.187
20140.1170.0760.192
20150.1140.0740.189
20160.1170.0740.212

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