McGILL BIRD OBSERVATORY

PHOTO LIBRARY

Northern Shrike (Lanius excubitor)

 Seasonal status at MBO:

JAN
       
FEB
       
MAR
       
APR
       
MAY
       
JUN
       
JUL
       
AUG
       
SEP
       
OCT
       
NOV
       
DEC
       
  common
  fairly common
  uncommon
  rare
  occasional
  no records
 
QUICK TIPS:
1)

Note

Ageing and sexing guidelines:

January - May:

ASY - U
Sexes identical. 
SY - U
Sexes identical. 

 

-

May - December:

AHY - U
Similar to ASY-U (see above); roof of the mouth dark gray.
     
HY - U
Similar to SY-U (see above); roof of the mouth pale pinkish-gray, iris gray to brown.
 

Ageing and sexing details:

after-second-year unknown

A


Photo by Barbara Frei, McGill Bird Observatory (QC), April 2008


A


Photo by Barbara Frei, McGill Bird Observatory (QC), April 2008


A


Photo by Barbara Frei, McGill Bird Observatory (QC), April 2008

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second-year unknown

S


Photo by Marcel Gahbauer, January 2006


S


Photo by Marcel Gahbauer, January 2006
 


U


Photo

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after-hatch-year unknown

A


Photo
 


T


Photo
 


T


Photo

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hatch-year unknown

H


Photo by Barbara Frei, McGill Bird Observatory (QC), October 2008


Photo by Marcel Gahbauer, October 2005


Photo by Marcel Gahbauer, October 2004
 


T


Photo by Barbara Frei, McGill Bird Observatory (QC), October 2008


Photo by Marcel Gahbauer, October 2005
 


T


Photo by Barbara Frei, McGill Bird Observatory (QC), October 2008


Photo by Marcel Gahbauer, October 2005

RETURN TO AGE/SEX OVERVIEW

 

 

2002- The Migration Research Foundation Inc.