Thursday, August 23, 2012


Be sure to checkout the "CURRENT TOTALS" tab to see the 2012 fall summary table. 


We captured 32 new birds with 3 recaptures of 8 different species.  Common Yellowthroats gave the Prairie Warblers a run for their money but fell short by 1 individuals for the most abundant species. 


A hint of a black mask on the following Common Yellowthroat would usually indicate a hatch-year male, however closer inspection of the primary coverts (pp covs) revealed that this was an adult bird.  Sometimes, adult females can take on male-like characteristics which is what occurred with this individual.   

Common Yellowthroat (after hatch-year, female)


Red-eyed Vireos in the fall can be aged using eye color.  Hatch-year birds will usually have brownish colored eyes while adults will have red eyes.  When using eye color to age birds, I always confirm the age using secondary characteristics such as primary coverts shape/wear and outer tail (rectrices) shape. 

Red-eyed Vireo (hatch-year, sex unknown)


10 Prairie Warbler

9 Common Yellowthroat

7 Northern Waterthrush

2 American Redstart

1 Yellow Warbler

1 Red-eyed Vireo

1 "Traill's" Flycatcher

1 Northern Mockingbird



2 Prairie Warbler

1 Northern Waterthrush



Effort: 45.0 net-hours

Capture Rate:  77.8 

# of Nets Used:  10

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