NORTHERN PARULA

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Northern Parula
Copyright © 2005 Jerry Kumery

 Conservation Concern: 8

Population Trend: Poorly Known
 Credibility: Very Poor

The Northern Parula is a very rare breeder in the CW Region, fairly common in the southern portions of the states.  Breeding habitat in the CW Region includes bottomland forests, wooded ravines, and sometimes riparian woods usually near rivers or streams.  This species is very rarely encountered on the BCN Census and accurate trends cannot be estimated.

Trend Level

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1997-2004 Trend
 Point Count Data		 1988-2004 Trend*
 All Observation Types

View the Graph for this Species
*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*:		  
  -62%   -42%  
   
   

 

 

Technical Notes (1997-2004 Trend)

Sample Size (Indiv.): 2

Sample Size (Records): 2

 

AVG. YEARLY RATE OF CHANGE:
(including standard error)
-92 to -32

  GOODNESS OF FIT:
Chi-square: 4.81, df 7, p 0.6829
Likelihood Ratio: 4.41, df 7, p 0.7314
AIC: -9.59
NOTE: (model fits if p values are above 0.05)

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Copyright © 2005 Audubon - Chicago Region & Bird Conservation Network

 
 
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