Results 1 to 10 of about 3,435 (166)
Holding a wing horizontal: Roles for muscles of the pectoral girdle other than the main two flight muscles. [PDF]
This report explores which muscles of the pectoral girdle are employed to allow birds to hold their wings horizontally with a level aerofoil surface during a glide. Abstract Whilst many birds glide briefly with wings held horizontally, some species maintain this posture for extended periods during soaring.
Deeming DC, Mosto MC.
europepmc +2 more sources
To the problem of owls’ (Strigiformes) diet selectivity
A large body of literature covers the trophic connections of owls nowadays, but detailed studies of the diet selectivity are rather race. Any attempt to determine the character of owls’ diet selectivity, its influence on prey-species assemblages ...
S. V. Zaika
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Morphological Variations of Leading-Edge Serrations in Owls (Strigiformes). [PDF]
Owls have developed serrations, comb-like structures, along the leading edge of their wings. Serrations were investigated from a morphological and a mechanical point of view, but were not yet quantitatively compared for different species.
Matthias Weger, Hermann Wagner
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Situación del mochuelo boreal (Aegolius funereus) y primera nidificación confirmada en el pirineo navarro. [PDF]
El mochuelo boreal Aegolius funereus, L., 1758 es una especie poco conocida y estudiada en el ámbito de la Comunidad Foral Navarra. Únicamente se conocen escasos registros auditivos (sonoros) de su presencia en el Pirineo navarro.
Javier Ibáñez +4 more
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The purpose of the research is studying helminths of carnivorous birds of the order of owls (Strigiformes) found in the Non-Black Earth Region of the Russian Federation.Materials and methods.
V. V. Dorokhov, O. E. Davydova
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Spatial and temporal changes in the nutrition of four species of diurnal birds of prey and six species of owls, traditionally referred to polyphages (generalists), are considered.
I. Komarnytskyi +2 more
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Passive acoustic monitoring is a wildlife monitoring method used especially for the study of vocally active species which are difficult to observe directly. The tawny owl (Strix aluco, Linnaeus 1758) is such a species, and has not been previously studied
Astaras Christos +2 more
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List of Strigiformes species in the Belgrade Natural History Museum bird collection [PDF]
During re-inventory of the order Strigiformes in the ornithological collection of the Belgrade Natural History Museum, we recorded a total of 134 specimens, collected at over 40 localities throughout Serbia. Of these 71 are in the study collection, 59 in
Novčić Ivana D.
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Птицы отрядов Falconiformes, Accipitriformes и Strigiformes находятся на вершине экологической пирамиды, в связи с чем, наиболее уязвимы к изменениям природной среды, происходящим под влиянием деятельности человека.
Sergey V. Vazhov
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The winter diet of the rare Tyto alba in contrast to Asio otus on Crimea Peninsula
The range of Tyto alba overlaps with that of Asio otus in a large part of the Holarctic. Both species are adapted to open-area hunting and prey upon similar species. In contrast to A. otus, data about the diet of T.
Volodymyr M. Kucherenko +4 more
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