Graph

Red-headed Woodpecker
(Melanerpes erythrocephalus)

Breeding Bird Survey in North America (BBS) - U.S. analyses

Additional information on: Breeding Bird Survey in North America (BBS) - U.S. analyses

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
19663.643.214.22
19673.282.983.65
19683.282.983.63
19692.842.63.12
19702.722.52.99
19712.82.573.06
19722.82.573.07
19732.662.442.9
19742.492.292.71
19752.62.392.84
19762.532.332.75
19772.552.362.77
19782.392.222.59
19792.452.282.66
19802.362.192.56
19812.362.182.58
19822.482.282.69
19832.282.122.47
19841.931.792.08
19851.711.591.85
19861.811.681.95
19871.741.621.88
19881.861.722.01
19891.721.61.87
19901.621.511.75
19911.651.531.79
19921.661.541.79
19931.511.411.64
19941.471.371.59
19951.361.261.46
19961.341.251.45
19971.291.21.4
19981.281.181.38
19991.191.11.28
20001.161.081.26
20011.21.111.3
20021.151.071.25
20031.171.081.27
20041.151.061.25
20051.131.041.23
20061.11.021.21
20071.111.031.22
20081.050.971.15
20091.050.971.15
20101.070.981.18
20111.040.951.14
20121.080.991.19

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