BCNBIRDS.ORG
       
BLACK-BILLED CUCKOO

The Black-billed Cuckoo is an uncommon breeder in northern IL and IN, northward. They are usually found in shrublands, grassland hedgerows, or woodlands with moderate understory. This species can be very difficult to detect and BCN eBird records are insufficient to produce accurate trends. BBS data indicates a a significant annual decrease of -2.9% in the upper Midwest. Trends for this species may change in response to the recent arrival of gypsy moths in the region. Photo: © Eric Secker

BLACK-BILLED CUCKOO  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

    Annual Change Pct. Error      
  PIF 18   7   29   Poor   +22% +/-52%      

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CW-PR1

 

 

 

 

 

 

 

 

 

Uncertain

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1999-2007 TREND - Point Counts

 

 

 

 

 

 

 

 

BLACK-BILLED CUCKOO

 

 

 

 

    Goodness of Fit
Chi-Square: p= 0.3978
     

 

 

 

 

 

 

 

 

Passes

 

 

 

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

 

     
Copyright © 2008 Audubon - Chicago Region & Bird Conservation Network