Graph

Common Raven
(Corvus corax)

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
19700.0440.0280.07
19710.0490.0330.079
19720.0520.0340.081
19730.0590.0380.088
19740.0660.0450.101
19750.070.0470.105
19760.080.0560.117
19770.0820.0550.119
19780.0940.0660.134
19790.1130.0790.174
19800.1240.0890.187
19810.1270.090.185
19820.1350.0940.192
19830.1620.1150.234
19840.1740.1270.251
19850.1850.1320.255
19860.2220.1590.331
19870.240.1750.348
19880.2680.1940.383
19890.3090.2320.457
19900.3050.2270.415
19910.3410.2560.485
19920.3620.2610.498
19930.4340.3260.6
19940.4390.3220.603
19950.5230.3970.719
19960.520.3780.679
19970.5490.3850.741
19980.6370.4650.862
19990.760.5851.03
20000.8480.6361.15
20010.8530.6151.15
20021.110.8421.56
20031.080.7891.48
20041.240.9211.72
20051.330.9921.8
20061.431.051.97
20071.721.272.37
20081.981.492.76
20092.061.532.85
20102.722.033.9
20112.251.63.11
20122.782.033.82
20133.122.284.33
20143.592.634.99
20153.772.735.37
20164.513.316.43

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