SANDHILL CRANE

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Sandhill Crane
Copyright © 2005 Eric Secker

Conservation Concern: 4 State Threatened

Population Trend: Poorly Known
Credibility: Poor

The Sandhill Crane is an uncommon to rare breeder in the CW Region.  Breeding habitat includes secluded, vegetated marshes and ponds.  Once common in Illinois, Sandhill Cranes more-or-less disappeared from the state in the late 1800's and were not rediscovered breeding until about 1980 when they were found nesting in northern Lake County.  They have since spread into other areas in the CW Region.  BCN data is too sparse to produce accurate trends for this species, but local crane counts show that this species is continuing to spread very slowly.

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*:
 
  -11%   15%  
   
   

 

 

Technical Notes (1997-2004 Trend)

Sample Size (Indiv.): 32

Sample Size (Records): 12

 

AVG. YEARLY RATE OF CHANGE:
(including standard error)
-84 to 63

 GOODNESS OF FIT:
Chi-square: 29.15, df 14, p 0.01
Likelihood Ratio: 31.52, df 14, p 0.0047
AIC: 3.52
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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