Graph

Ruffed Grouse
(Bonasa umbellus)

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
19700.1150.060.218
19710.1050.0520.192
19720.130.0740.269
19730.1110.0570.2
19740.1180.0650.225
19750.1050.0520.188
19760.1090.0590.189
19770.1070.0540.183
19780.1290.0780.248
19790.1170.0630.211
19800.1280.0770.247
19810.1050.0540.172
19820.110.060.187
19830.1280.0780.24
19840.1180.0640.203
19850.130.0810.265
19860.1310.080.254
19870.1040.0480.169
19880.1070.0530.171
19890.110.0580.184
19900.1040.0490.168
19910.1040.0490.166
19920.1190.0730.211
19930.120.0710.219
19940.1140.0630.184
19950.1060.0540.161
19960.1290.0830.224
19970.1480.0970.305
19980.1220.0720.207
19990.1290.0810.239
20000.140.0910.281
20010.1460.0950.295
20020.1060.0550.169
20030.1160.0670.192
20040.1220.070.214
20050.1090.0580.176
20060.1120.060.177
20070.1070.0550.173
20080.1130.0630.178
20090.1360.0840.246
20100.1160.0660.194
20110.1360.0840.24
20120.0990.0430.166
20130.1250.0740.214
20140.1480.0930.276
20150.1220.0680.21
20160.110.0520.192

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