Graph

Bonaparte's Gull
(Chroicocephalus philadelphia)

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
19705.870.447420
19715.090.427340
19724.380.397246
19732.740.32479.3
19743.290.328161
19752.820.318120
19762.220.28276.6
19771.980.27956.3
19782.310.349107
19792.510.38692.5
19802.410.38386.7
19811.360.26529.5
19820.7910.17311.4
19830.7670.16310.7
19840.7490.18810.1
19850.9420.24416.2
19860.5690.1526.53
19870.5380.1526.25
19880.5880.1768.08
19890.5030.1547.3
19900.4250.1394.27
19910.4420.1544.62
19920.3410.1212.91
19930.3550.1264.2
19940.3410.1293.03
19950.2950.1182.08
19960.2860.1122.34
19970.2720.1121.83
19980.370.1514.31
19990.2750.1162.1
20000.2590.1081.97
20010.2660.1131.9
20020.4410.1539.33
20030.2870.1152.93
20040.3020.1164.28
20050.3110.1193.69
20060.3970.147.93
20070.7250.19328.6
20080.8630.20840.1
20090.340.1177.09
20100.4150.12911.4
20110.4440.1314.2
20120.4540.13114.6

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