WHITE-BREASTED NUTHATCH

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White-breasted Nuthatch
Copyright © 2005 Eric Secker

 Conservation Concern: NONE

Population Trend: Increasing
 Credibility: Mod. Good

The White-breasted Nuthatch is a common statewide breeder.  Preferred habitat includes cavities in mature woodlands with dead snags.  This somewhat active species is fairly well detected on BCN Census point counts in woodland areas.  BCN Trend estimates indicate that this species is increasing in the CW Region.

Trend Level

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1997-2004 Trend
 Point Count Data		 1988-2004 Trend*
 All Observation Types

*Data gathered using a assortment of sampling methods  - for casual inferences only
  Avg. Yearly
Rate of Change:

The vertical axis numbers represent an index of the population change.

Note that the scales may vary between graphs.

 Avg. Yearly
Rate of Change*:		  
  16%   2%  
   
   

 

 

Technical Notes (1997-2004 Trend)

Sample Size (Indiv.): 166

Sample Size (Records): 126

 

AVG. YEARLY RATE OF CHANGE:
(including standard error)
-12 to 45

  GOODNESS OF FIT:
Chi-square: 81.17, df 76, p 0.3213
Likelihood Ratio: 92.97, df 76, p 0.0903
AIC: -59.03
NOTE: (model fits if p values are above 0.05)

Download Table of All Observations

 
 

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Copyright © 2005 Audubon - Chicago Region & Bird Conservation Network

 
 
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