Graph

Boreal Chickadee
(Poecile hudsonicus)

Picture of logo Christmas Bird Count (CBC)

Additional information on: Christmas Bird Count (CBC)

Geographic area or population: North America

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
197014.49.0927.7
197114.18.9726.9
197214.39.1326.7
197314.19.0526.5
1974148.9226.5
197514926
197613.88.7925.4
197713.68.6726.3
197813.68.7724.6
197913.58.6924.7
198013.78.8924.8
198113.88.8725.2
198213.58.5925.3
198313.78.925.3
198414.29.1825.1
1985149.0225.7
198613.7924.2
198713.68.7824.3
198813.88.925.2
198914.39.2125.1
199013.38.5723.4
199113.48.7523.3
199213.98.8525.6
199314.29.1425.4
199414.39.2326.2
199514.69.4127.2
199614.19.0326.1
199714.69.3327.1
199814.49.2927
199914.99.4129.5
200014.28.9526.3
200114.89.4327.7
200214.39.0627.4
200314.69.1827.9
200414.59.1827.2
200514.99.3329.8
200614.59.2127.5
200715.29.6129.4
200814.89.2529.2
200915.49.8128.9
201015.19.5429.6
201115.19.529.1
201215.39.7329.2
201315.19.3630
201415.49.6830.1
201515.29.4330.5
201615.49.4731

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