COMMON YELLOWTHROAT

 SPECIES INDEX  |  HOME    

Common Yellowthroat
Dave Menke / USFWS

 Conservation Concern: NONE

Population Trend: Stable
 Credibility: Good

The Common Yellowthroat is a common and easily detected statewide breeder.  Breeding habitat is varied, but includes open shrublands and marshland edges.  The Common Yellowthroat appears to be fairly stable or slightly declining in the CW Region.

Trend Level

Interpreting the Data | Analysis Methods | Disclaimer | Contact Us

 

 
   
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%   -2%  
   
   

 

 

Technical Notes (1997-2004 Trend)

Sample Size (Indiv.): 931

Sample Size (Records): 560

 

AVG. YEARLY RATE OF CHANGE:
(including standard error)
-7 to 6

  GOODNESS OF FIT:
Chi-square: 633.19, df 590, p 0.1062
Likelihood Ratio: 665.48, df 590, p 0.0166
AIC: -514.52
NOTE: (model fits if p values are above 0.05)

Download Table of All Observations

 
 

Project Affiliates and Sponsors:

Copyright © 2005 Audubon - Chicago Region & Bird Conservation Network

 
 
HOME  |  SPECIES INDEX  |  INTERPRETING THE DATA  |  ANALYSIS METHODS  |  DISCLAIMER  |  CONTACT US
     
  Site designed by - Piazza Design