Established in as Acta Ornithologica Musei Zoologici Polonici, since continued under the present title. Published twice a year by the Natura Optima. Contents of Acta Ornithologica Vol. 40, No 2, Winter Campos F.1, Corchero -Gutiérrez F.2, Hernández M. A.3, Rivas J. M.4, López-Fidalgo J.5 Acta Ornithologica. Country, Poland – SIR icon SIR Ranking of Poland. H Index. Subject Area and Category, Agricultural and Biological Sciences.

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No relationship was found between the body weight and the location and number of bone injuries. Accuracy and efficiency of different techniques for censusing territorial Middle Spotted Woodpeckers Dendrocopos medius.

Acta Ornithologica – Wikipedia

Box,HeraklionCrete, Greece. It is possible that during years with high berry supply, the density of birds may be so large, that defending fruits against many neighbors may be too costly and less profitable than feeding in flocks.

Ornithklogica comment includes revised information. We suggest that variation in nest size and composition may be due to several contradictory pressures associated with the need to keep the moisture and temperature in the nest relatively constant, to protect the brood from predation, and to control sanitary standards. The likely cause of nest sharing in the first case was the loss of eggs at an early stage of laying by the second female. As such they may not reflect the journals’ exact ornithooogica or speed.

Wilcza 64, Warszawa tel. Three-toed Woodpecker, Picoides tridactylusconservation of endangered species, primeval forest, dead wood, snags. The first pair occupied the nest for 5—8 days, the second pair for one day, and probably only the third pair remained at the nest to actually breed.

Hornbeams are the preferred species for nests in the oak-lime-hornbeam stands also clumps of mistletoe Viscum album in the continental mapleblack alders in the riparian woodland. In following months males also sang at quite a high rate, but the probability of finding a singing male within the territory was lower. During the breeding season the number of birds killed in built-up areas was related positively to the number of cattle reared, the overall number of livestock including pigs and the number of inhabitants.

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The vocalization period of the Little Crake is short but intensive, peaking before the start of incubation. The low level of polygyny is attributable to the low food abundance in a natural floodplain, as the nestlings in this population were fed on predominantly small food items. This could have led to an influx of new females into the study area, a change in the operational sex ratio, and new mating opportunities for males.

The non-excavators were best differentiated by their preferred hole type, and their tree use and nest site characters were mainly a consequence of the location of such holes. Mistle Thrush densities differed significantly between winters. Birds were non-randomly distributed on nine vegetation types met along the transect route. Day-to-day fluctuations in numbers were on an average the highest at the coastal station most exposed to variable weather, the lowest at the inland stations, and intermediate at the more ‘sheltered’ of the coastal station.

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal.

The average times of the beginning, maximum intensity and end of nocturnal migration were found to be related to photoperiodic factors.

No significant differences were found in specific measurements of foraging behaviour but non infected birds tended to scratch more frequently than infected birds. Individual and sexual differences in calls of the monomorphic White-faced Whistling Duck Dendrocygna viduata. SJR is a measure of scientific influence of journals that accounts for both the number of citations ornitholoigca by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

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With respect to nest site use, the Daurian Redstart behaved as a generalist while the Ornitholoigca Treecreeper specialized in long slits. Journals and magazines relating to birding and ornithology Science and technology in Poland Publications established in English-language journals Polish Academy of Sciences academic journals Biannual journals Ornithology stubs Zoology journal stubs.

ACTA ORNITHOLOGICA

We present the first ornithologgica allometric study of the relative OCL thickness expressed as a fraction of the diaphyseal radius in modern birds. The first stage of the Siberian Knot’s autumn migration between its breeding grounds in Taimyr, Siberia and the W European tidal flats is still poorly understood, despite our expanding knowledge of this species. Of 39 species analysed, 18 showed specific higher densities in Hamburg, 4 in Warsaw and 2 in Berlin. The composition of ornithologiva dominant food items and the average mass of food deliveries changed markedly with nestling growth.

The main sources of data for this paper are recent monographs of the avifauna of three large cities situated in the northern lowlands of Central Europe along an km-long west-east line. Your review informs others about the journal.

This unusual behaviour in swallows seems to be deliberate and is aimed at choosing a nest with nestlings in order to obtain extra food from experienced adult birds rather than an error caused by the darkness in the shelter. In this paper the available data on bird mortality on roads is reviewed.

Cites Year Value External Cites per document 0. An abundant resident in Israelthe Graceful Warbler breeds in the northern and central parts of the country and has recently invaded desert areas following their human settlement.

At the start of the season, when deciduous plants began sprouting leaves, Blackbirds preferred those whose leaves appeared earlier.