HORNED LARK

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Horned Lark
Copyright © 2005 Jerry Kumery

 Conservation Concern: NONE

Population Trend: Poorly Known
Credibility: Very Poor

The Horned Lark is a fairly common, but difficult to detect breeder in the fringe counties in the CW Region and an uncommon to rare breeder in the immediate Chicagoland area.  This species is poorly sampled by the BCN Census which does not adequately sample agricultural areas.

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*:		  
  ----   7%  
   
   

 

 

Technical Notes (1997-2004 Trend)

Sample Size (Indiv.): 14

Sample Size (Records): 2

 

AVG. YEARLY RATE OF CHANGE:
(including standard error)
0 to 0

  GOODNESS OF FIT:
------
------
------
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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