INDIGO BUNTING

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Indigo Bunting
Copyright © 2005 Eric Secker

 Conservation Concern: NONE

Population Trend: Stable
Credibility: Very Good

The Indigo Bunting is a common statewide breeder.  Breeding habitat includes a variety of open woodland habitats with little understory.  Both short-term and long-term trends indicate that this species is stable or increasing very slightly in the Chicago Wilderness Region.  This highly adaptable species regularly nests in non-native plants like garlic mustard.

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*:		  
  1%   1%  
   
   

 

 

Technical Notes (1997-2004 Trend)

Sample Size (Indiv.): 539

Sample Size (Records): 376

 

AVG. YEARLY RATE OF CHANGE:
(including standard error)
-9 to 10

  GOODNESS OF FIT:
Chi-square: 275.74, df 306, p 0.8923
Likelihood Ratio: 291.75, df 306, p 0.7116
AIC: -320.25
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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