YELLOW-THROATED WARBLER

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Yellow-throated Warbler
Copyright © 2005 Eric Secker

Conservation Concern: 7PIF

Population Trend: Increasing
Credibility: Poor

The Yellow-throated Warbler is a very rare, but locally uncommon breeder, in the CW Region, common to the south.  Breeding habitat includes mixed open woods, often with pines and sycamore trees and often near water.  BCN Census trends represent an expansion in the range of this species into our area and are not representative of the population at large.  One or two populations in the CW Region have become fairly well established and are continuing to increase.

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*:
 
  210%   75%  
   
   

 

 

Technical Notes (1997-2004 Trend)

Sample Size (Indiv.): 8

Sample Size (Records): 3

 

AVG. YEARLY RATE OF CHANGE:
(including standard error)
-102 to 521

 GOODNESS OF FIT:
Chi-square: 2.63, df 4, p 0.6218
Likelihood Ratio: 2.21, df 4, p 0.6971
AIC: -5.79
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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