Graph

Eastern Bluebird
(Sialia sialis)

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
19700.2910.1580.533
19710.3810.2140.67
19720.3920.2190.696
19730.2550.1330.479
19740.2780.150.517
19750.3820.2260.637
19760.370.2150.631
19770.1850.0880.347
19780.1590.0730.317
19790.2440.1250.44
19800.1680.0790.309
19810.3630.2150.604
19820.220.1110.399
19830.330.1920.541
19840.2840.1470.496
19850.2610.1410.48
19860.1950.0930.357
19870.4650.280.761
19880.2180.110.392
19890.3520.2060.579
19900.6940.4641.04
19910.6890.4621.02
19920.6860.4561.01
19930.7420.5161.07
19940.6130.4380.859
19950.790.5871.08
19960.6290.4540.884
19970.6360.450.893
19981.060.7731.44
19991.030.7461.42
20001.130.851.54
20011.040.7721.4
20021.150.8321.6
20030.7550.5431.05
20040.6860.4790.976
20050.6030.4180.868
20060.8160.5981.11
20071.020.7541.39
20080.9120.6861.22
200910.7481.37
20100.6990.5030.964
20110.7390.5311
20120.9050.6661.2
20130.7540.5331.05
20140.6730.4750.969
20150.8220.5881.13
20160.8530.6071.19

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