Graph

Black Swift
(Cypseloides niger)

Breeding Bird Survey (BBS) - Canadian analysis

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

Geographic area or population: Canada

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
197323.16.3133
197420.65.77114
197519.85.7108
197619.35.62107
197716.54.7787.3
197815.44.681.3
197914.54.4675.7
198013.44.1569.2
1981123.7661.2
198211.83.8160.2
198310.63.4351.2
19849.753.1746.9
19858.732.941
19868.012.7237.2
19877.952.7437.3
19887.342.5133.7
19896.492.2729.1
19906.472.2629.5
19915.952.1326.5
19925.161.8222
19935.061.8122
19944.381.5419
19954.11.4117.8
19964.011.4417.3
19974.021.4518
19983.521.2515.2
19993.391.2214.5
20003.041.0812.7
20012.84111.8
20022.610.90711
20032.570.88711.3
20042.290.799.86
20052.330.80610.4
20062.110.7139.33
20072.120.7119.48
20082.030.6779.18
20091.910.6218.99
20101.870.5959.29
20111.70.5168.48
20121.680.5089.11

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