BIRDS OF COSTA RICA

PHOTO LIBRARY

Great-crested Flycatcher / Copeton Viajero (Myiarchus crinitus)

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Species account updated March 2009

Ageing and sexing overview:

Spring:

ASY - U
Sexes identical. 
   

 

SY - U
Sexes identical. 

Ageing and sexing details:

SPRING:  ASY-U (after-second-year, sex unknown)

 



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SPRING:  SY-U (second-year, sex unknown)

Overall body plumage provides little information about age of Great-crested Flycatchers.


Photo by Marcel Gahbauer, Las Caletas (CR), April 2008



Photo by Marcel Gahbauer, Las Caletas (CR), April 2008


Note the relatively narrow, tapered, and worn rectrices, typical of a second-year Great-crested Flycatcher.


Photo by Marcel Gahbauer, Las Caletas (CR), April 2008

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2002- The Migration Research Foundation Inc.