30 research outputs found
Ekologia Zverey I Ptitz Lesostepnikh Dubrav. [Ecology of Birds and Mammals of the Forest-Steppe Oak Woods] G. A. Novikov
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The influence of Dutch elm disease on bird population trends
No full textEven bird species which do not nest or feed arboreally may be affected by elm death and felling, when understorey growth ceases to be depressed by the tree canopy. Yet assessment of the impact of Dutch elm disease is complicated by the way birds seem to prefer to remain within the area they know, even when the habitat is altered
The biology of the warble-fly Oestromyia leporina pallas 1778 (Diptera, Hypodermatidae), a parasite of the field-mouse Microtus arvalis pall
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Fruit Colour Preferences of Redwings (Turdus iliacus): Experiments with Hand-Raised Juveniles and Wild-Caught Adults
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