Graph

Gray Partridge
(Perdix perdix)

Breeding Bird Survey (BBS) - Canadian analysis

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

Geographic area or population: Canada

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
19700.3790.240.626
19710.360.2260.581
19720.3880.2550.619
19730.3970.2610.651
19740.3210.2040.496
19750.3190.2060.498
19760.3770.2510.571
19770.3180.2070.482
19780.3660.2490.554
19790.3770.2530.55
19800.3880.2670.605
19810.4040.2750.623
19820.3630.2470.56
19830.3540.2390.526
19840.3570.2370.548
19850.2920.1870.432
19860.350.2380.56
19870.4290.30.667
19880.40.2780.64
19890.3650.2590.55
19900.3980.2870.59
19910.3230.2270.466
19920.3310.2420.457
19930.2960.210.411
19940.260.180.361
19950.3080.2180.435
19960.3760.2730.549
19970.240.1640.35
19980.290.210.408
19990.3190.2290.477
20000.330.2420.466
20010.3540.2670.5
20020.3010.2190.411
20030.3930.2830.595
20040.3980.2880.601
20050.3750.2730.55
20060.3660.2640.531
20070.3590.2560.523
20080.3150.2240.453
20090.3820.270.616
20100.270.1910.377
20110.2350.1570.343
20120.2670.1880.37
20130.2770.1930.398
20140.2490.1680.356
20150.2350.1630.346
20160.3130.2270.464

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