SONG SPARROW

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Song Sparrow
Copyright © 2005 Eric Secker

 Conservation Concern: NONE

Population Trend: Stable
Credibility: Good

The Song Sparrow is a common statewide breeder.  Breeding habitat is varied and includes grasslands and marshland edges.  BCN eBird trend estimates show that this is stable 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*:		  
  -1%   -1%  
   
   

 

 

Technical Notes (1997-2004 Trend)

Sample Size (Indiv.): 1820

Sample Size (Records): 869

 

AVG. YEARLY RATE OF CHANGE:
(including standard error)
-5 to 4

  GOODNESS OF FIT:
Chi-square: 713.27, df 708, p 0.4375
Likelihood Ratio: 791.25, df 708, p 0.0158
AIC: -624.75
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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