ALDER FLYCATCHER

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Alder Flycatcher
Copyright © 2005 Eric Secker

 Conservation Concern: NONE

Population Trend: Poorly Known
Credibility: Very Poor

The Alder Flycatcher is believed to be a very rare breeder in northern Illinois.  Its detectablity is complicated by the fact that this species is extremely difficult to distinguish from the much more common Willow Flycatcher.  Migrant Alder Flycatchers can also often be seen well into the month of June.  This species has only been reported 31 times since 1988 and 4 times since 1997 (only once during Point Count monitoring).

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*:		  
  ----   ----  
   
   

 

 

Technical Notes (1997-2004 Trend)

Sample Size (Indiv.): 2

Sample Size (Records): 1

 

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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