EASTERN MEADOWLARK

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Eastern Meadowlark
Copyright © 2005 Jerry Kumery

 Conservation Concern: 8

Population Trend: Poorly Known
 Credibility: Good

The Eastern Meadowlark is a common statewide breeder.  Preferred habitat includes grasslands, savannas, weedy fields, and open shrublands.  Estimated trends indicate that this species is declining slightly.  Development and suburban sprawl in the western  counties likely accounts for a portion of the decrease.

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*:		  
  -3%   0%  
   
   

 

 

Technical Notes (1997-2004 Trend)

Sample Size (Indiv.): 1000

Sample Size (Records): 457

 

AVG. YEARLY RATE OF CHANGE:
(including standard error)
-8 to 3

  GOODNESS OF FIT:
Chi-square: 480.44, df 371, p 0.0001
Likelihood Ratio: 517.17, df 371, p 0
AIC: -224.83
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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