Graph

Pileated Woodpecker
(Dryocopus pileatus)

Breeding Bird Survey (BBS) - Canadian analysis

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

Geographic area or population: Lower Great Lakes / St. Lawrence Plain

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
19700.0790.0530.118
19710.0860.060.135
19720.0860.0590.128
19730.0920.0640.136
19740.0960.0660.135
19750.1010.0710.144
19760.1030.0720.144
19770.1130.080.162
19780.120.0870.176
19790.1250.0860.175
19800.1290.0960.179
19810.1370.0970.194
19820.1420.1040.195
19830.1550.1160.218
19840.1530.1090.204
19850.1760.1320.254
19860.1780.1310.242
19870.1770.1220.236
19880.1920.1390.248
19890.2030.150.272
19900.2090.1470.271
19910.2380.1840.33
19920.2460.1870.337
19930.2570.2030.347
19940.2660.2030.34
19950.2530.1750.322
19960.2770.2040.35
19970.2920.2060.363
19980.320.2540.412
19990.3550.2810.467
20000.3730.2970.497
20010.3750.2870.485
20020.3930.30.502
20030.4180.3190.536
20040.4520.3530.599
20050.4280.310.538
20060.4880.3820.631
20070.6030.4730.868
20080.5220.4020.663
20090.5580.4320.717
20100.5830.4430.752
20110.6560.5160.864
20120.6950.5550.929
20130.6870.5330.891
20140.6880.5080.89
20150.7820.6141.03
20160.8250.6361.08

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