Hi Bill

BNA #372 on the Great Horned Owl says:

"Female heavier than male; masses of 895 males and 772 females (all
subspecies combined) averaged 1304 g and 1706 g, respectively (Craighead
and Craighead 1956); 94 of each sex had mean of 1142 g and 1509 g,
respectively (Snyder and Wiley 1976; specimens from 7 museums). Mass of
several subspecies: 22 males and 29 females of virginianus averaged 1318 g
and 1769 g, respectively, and 18 males and 12 females of pallescens
averaged 914 g and 1142 g, respectively; 1 female of virginianus weighed
2503 g; smallest male pacificus weighed only 680 g (Earhart and Johnson
1970)."



Dan Logen
Stanwood, Wa


----------
> From: William R. Applegate <applgate at whidbey.net>
> To: Tweeters <tweeters at u.washington.edu>
> Subject: Great Horned Owls - Weight
> Date: Tuesday, March 16, 1999 10:58 AM
>
> I could use some help. I'm preparing a class report on Great Horned
Owls.
> The only weights I can find in the books available to me are in the
Audubon
> Society Encyclopedia of North American Birds (Terres). It says males
> average 245 gms, females average 280 gms. I find that hard to believe!
> Does anyone have any other figures?
> Thanks for your help.
> Bill Applegate
> applgate at whidbey.net