Sex-specific diet analysis of the Eurasian Eagle Owl in Finland
In this study we used the stomach contents of Eagle Owls (primarily 1st winter birds) made available from Finnish museums or taxidermists. Female owls from Finland had an average weight of 2760g (N=50), while male weights averaged 2200g (N=35). The most common prey for both male and female owls was...
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BirdLife Finland
2014
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fttsvojs:oai:journal.fi:article/133856 2023-09-05T13:19:16+02:00 Sex-specific diet analysis of the Eurasian Eagle Owl in Finland Mikkola, Heimo Tornberg, Risto 2014-09-30 application/pdf https://ornisfennica.journal.fi/article/view/133856 eng eng BirdLife Finland https://ornisfennica.journal.fi/article/view/133856/82409 https://ornisfennica.journal.fi/article/view/133856/82410 https://ornisfennica.journal.fi/article/view/133856 Ornis Fennica; Vol 91 Nro 3 (2014); 195–200 Ornis Fennica; Vol. 91 No. 3 (2014); 195–200 0030-5685 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 2014 fttsvojs 2023-08-23T23:03:11Z In this study we used the stomach contents of Eagle Owls (primarily 1st winter birds) made available from Finnish museums or taxidermists. Female owls from Finland had an average weight of 2760g (N=50), while male weights averaged 2200g (N=35). The most common prey for both male and female owls was Field Vole. Despite our limited material (42 female and 24 male stomachs), it suggests that Eagle Owl females preyed upon relatively larger prey (Hedgehogs, Muskrat and a wider variety of larger birds) than males. A more correct way to test whether females and males select different prey, diet for males and females hunting in the same area simultaneously should be studied. This would include intensive radio telemetry and/or the video filming of the sexed individuals.The dead found Eagle Owl specimens used in the current study, however, provide the cheapest avenue to address sexual dietary differences in species where internal examination is the only sure way to determine gender. Article in Journal/Newspaper eurasian eagle-owl Federation of Finnish Learned Societies: Scientific Journals Online |
institution |
Open Polar |
collection |
Federation of Finnish Learned Societies: Scientific Journals Online |
op_collection_id |
fttsvojs |
language |
English |
description |
In this study we used the stomach contents of Eagle Owls (primarily 1st winter birds) made available from Finnish museums or taxidermists. Female owls from Finland had an average weight of 2760g (N=50), while male weights averaged 2200g (N=35). The most common prey for both male and female owls was Field Vole. Despite our limited material (42 female and 24 male stomachs), it suggests that Eagle Owl females preyed upon relatively larger prey (Hedgehogs, Muskrat and a wider variety of larger birds) than males. A more correct way to test whether females and males select different prey, diet for males and females hunting in the same area simultaneously should be studied. This would include intensive radio telemetry and/or the video filming of the sexed individuals.The dead found Eagle Owl specimens used in the current study, however, provide the cheapest avenue to address sexual dietary differences in species where internal examination is the only sure way to determine gender. |
format |
Article in Journal/Newspaper |
author |
Mikkola, Heimo Tornberg, Risto |
spellingShingle |
Mikkola, Heimo Tornberg, Risto Sex-specific diet analysis of the Eurasian Eagle Owl in Finland |
author_facet |
Mikkola, Heimo Tornberg, Risto |
author_sort |
Mikkola, Heimo |
title |
Sex-specific diet analysis of the Eurasian Eagle Owl in Finland |
title_short |
Sex-specific diet analysis of the Eurasian Eagle Owl in Finland |
title_full |
Sex-specific diet analysis of the Eurasian Eagle Owl in Finland |
title_fullStr |
Sex-specific diet analysis of the Eurasian Eagle Owl in Finland |
title_full_unstemmed |
Sex-specific diet analysis of the Eurasian Eagle Owl in Finland |
title_sort |
sex-specific diet analysis of the eurasian eagle owl in finland |
publisher |
BirdLife Finland |
publishDate |
2014 |
url |
https://ornisfennica.journal.fi/article/view/133856 |
genre |
eurasian eagle-owl |
genre_facet |
eurasian eagle-owl |
op_source |
Ornis Fennica; Vol 91 Nro 3 (2014); 195–200 Ornis Fennica; Vol. 91 No. 3 (2014); 195–200 0030-5685 |
op_relation |
https://ornisfennica.journal.fi/article/view/133856/82409 https://ornisfennica.journal.fi/article/view/133856/82410 https://ornisfennica.journal.fi/article/view/133856 |
_version_ |
1776200082730778624 |