Graph

Virginia Rail
(Rallus limicola)

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
19700.0310.0160.06
19710.030.0150.058
19720.030.0160.058
19730.0310.0160.056
19740.0320.0170.057
19750.0310.0170.056
19760.0320.0180.057
19770.0320.0180.055
19780.0330.0190.057
19790.0330.0190.055
19800.0330.0190.054
19810.0340.0210.057
19820.0350.0220.058
19830.0360.0230.061
19840.0350.0220.056
19850.0360.0230.058
19860.0350.0220.055
19870.0360.0220.056
19880.0370.0240.057
19890.0370.0240.056
19900.0380.0250.06
19910.0380.0260.058
19920.0390.0260.059
19930.0390.0260.06
19940.040.0270.059
19950.0420.0290.064
19960.040.0280.061
19970.0410.0280.062
19980.0410.0270.059
19990.0410.0280.06
20000.0420.0280.061
20010.0450.0320.072
20020.0440.0290.066
20030.0430.0280.063
20040.0440.030.068
20050.0440.0290.065
20060.0460.0320.071
20070.0450.0290.067
20080.0460.030.071
20090.0460.0310.073
20100.0470.0290.071
20110.0480.0310.077
20120.0460.0280.073
20130.0490.0320.079
20140.0510.0330.085
20150.0480.0310.077
20160.050.030.081

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