Graph

Red-winged Blackbird
(Agelaius phoeniceus)

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
1970144129161
1971142124157
1972147133164
1973143128158
1974141128156
1975152137178
1976151137181
1977150136183
1978144130168
1979143130168
1980138126159
1981134123150
1982133121150
1983137125160
1984129117144
1985127116141
1986126115140
1987124114137
1988123112137
1989120109132
1990116106127
1991115104125
199211199.6121
1993115106125
1994114105123
1995115106125
1996112103121
199710898.3117
1998109101118
199910697.3115
200010898.5117
200110697114
200210798.1117
200310899.3118
200410697.4116
200510495.1113
200610596.7114
200710293.8111
200810495.7114
200999.491.6108
201099.491.6108
201197.689.8106
201293.485.3102
201393.185.1101
201494.787104
201592.784.7101
201686.277.394.6

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