Graph

Ruffed Grouse
(Bonasa umbellus)

Breeding Bird Survey (BBS) - Canadian analysis

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

Geographic area or population: Northern Pacific Rainforest

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
19700.3120.1440.615
19710.3140.1480.673
19720.3190.1620.691
19730.3420.1870.777
19740.3040.150.545
19750.2990.1550.542
19760.3320.1840.711
19770.2880.1320.505
19780.2980.1450.555
19790.3160.1770.645
19800.3220.1880.713
19810.3170.1890.645
19820.2960.1660.547
19830.2730.1180.454
19840.2820.1340.475
19850.3020.1780.582
19860.2720.1180.455
19870.2720.1130.461
19880.2760.1320.449
19890.2710.1260.446
19900.280.150.466
19910.2690.1270.427
19920.2650.120.42
19930.2760.1530.449
19940.2820.1660.524
19950.2520.0970.39
19960.2890.1810.589
19970.2650.1350.454
19980.2650.1320.441
19990.2530.110.404
20000.270.1550.462
20010.2660.150.438
20020.2930.1930.606
20030.280.1790.523
20040.2470.1240.389
20050.260.1450.44
20060.2560.140.414
20070.2820.1810.553
20080.2560.1430.456
20090.270.1640.536
20100.2560.1380.449
20110.2430.1220.408
20120.2320.0930.4
20130.2510.1410.451
20140.2460.1330.432
20150.2340.1140.41
20160.2640.1540.513

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