Graph

Black-billed Magpie
(Pica hudsonia)

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
1970108.3612.4
197110.18.4612.4
197210.68.9813
197310.18.5612.3
19749.748.2311.8
19759.417.9811.5
197610.28.6712.4
197710.38.812.5
19789.728.311.7
19799.488.0811.6
19809.738.3211.8
19819.848.4311.8
19829.58.1311.5
19839.458.111.3
19849.227.911.1
19859.027.7710.8
19869.057.7710.8
19879.528.2611.4
19889.418.1411.2
19899.578.311.4
19909.78.4511.5
19919.38.1111
19929.278.0811
19939.077.9310.7
19949.748.5211.5
19958.967.8510.5
19969.037.8810.6
19979.148.0110.8
19989.448.2611.1
19999.558.3911.2
20009.698.5111.4
20019.738.5411.4
20029.428.2511.1
20039.938.6611.7
20049.558.3311.3
20059.278.0911
20069.468.2511.3
20078.977.8310.7
20088.677.5410.4
20098.717.5610.4
20109.328.1211
20119.268.0311
20129.398.1511.2

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