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Surnia

 
National Institutes of Health

Papers overview

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Review
2017
Review
2017
One of the largest known irruptions of Northern Hawk Owls Surnia ulula in southern Norway started in mid August 2016. During… Expand
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2014
2014
Attempted predation of Northern Hawk-owl Surnia ullula by Common Kestrel Falco tinnunculus? 
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2005
2005
Von Dr. ~.ug~no Rey. Vor einigen Tagen erhielt Hen" W. Schlfiter bier, aus Kittila in Tbrne~i, Lappland , B~ilge und Eier yon… Expand
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1997
1997
The Northern Hawk Owl (Surnia ulula) has never been recorded to breed in Nova Scotia (and only once in recent history in all of… Expand
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1992
1992
  • G. Sonerud
  • Behavioral Ecology and Sociobiology
  • 1992
  • Corpus ID: 24152225
SummaryAfter having erected artificial perches of different heights in a clear-cut, I studied the effect of perching height on… Expand
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