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RED-WINGED BLACKBIRD

The Red-winged Blackbird is an abundant statewide breeder. Breeding habitat is varied and includes cattail marshes, grasslands, and other fields. Trends indicate that this species is stable in the Chicagoland area. This species is fairly well monitored by the BCN Survey, although better coverage and monitoring of wetlands may yield slightly different trends. Photo: © Eric Secker

RED-WINGED BLACKBIRD  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

    Annual Change Pct. Error      
  None Noted   503   2147   Normal*   -1% +/-2%      

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1999-2007 TREND - Point Counts

 

 

 

 

 

 

 

 

RED-WINGED BLACKBIRD

 

 

 

 

    Goodness of Fit
Chi-Square: p= 0
     

 

 

 

 

 

 

 

 

Fails

 

 

 

    model fits if p >0.05 (model
estimate is not significantly
dif. from observed counts)
     
           

 

     
Copyright © 2008 Audubon - Chicago Region & Bird Conservation Network