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Snowy Owl Morphometric Data from North American Winter Studies.

LocationMean Live MassMean ChordMean Tail
Maleg (n)mm (n)mm (n)
Massachussets11674.2 (286)386.9 (286)223.3 (286)
Minnesota21657.0 (170)393.9 (170)209.6 (160)
New York31596.9 (197)393.1 (197)223.1 (143)
Alberta41525.5 ( 26 )385.5 ( 26 )204.6 ( 26 )
Alberta51650.9 (162)396.0 (165)217.9 (162)
Saskatchewan61600.9 (154)392.7 (153)209.8 (137)
Total1636.9 (995)391.7 (869)217.4 (914)
Femaleg (n)mm (n)mm (n)
Massachussets12128.4 (165)424.3 (165)239.7 (165)
Minnesota22179.9 (262)429.5 (262)225.9 (252)
New York32087.3 (196)434.4 (196)246.3 (142)
Alberta41893.2 ( 69 )420.1 ( 69 )219.3 ( 69 )
Alberta52096.1 (289)428.6 (292)236.6 (288)
Saskatchewan62119.0 (208)428.6 (206)226.5 (188)
Total2109.8 (1189)428.6 (1190)233.5 (1034)

Source:

1Norman Smith, unpublished data; 2David Evans, unpublished data; 3Thomas McDonald, unpublished data; 4Mike Blom, unpublished data; 5Hardy Pletz, unpublished data; 6Dan Zazelenchuk, unpublished data.