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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Single males occupied thirty-eight territories You need JavaScript enabled to view it.

Acta Ornithologica – Wikipedia

Contents of Acta Ornitjologica Vol. This is the most likely reason why the difference in nest-size between predated and non-predated nests was apparent, even in unmanipulated settings. Inbreeding attempts were studied in a colour-ringed Sedge Warbler population. However, the composition of these portions was not as diverse as those brought by females.

Acta Ornithologica

In spite of these facts, the nestlings in parasitised nests developed less rapidly and had lower survival rates than in the anti-parasitically heat-treated nests. The White-faced Whistling Duck is a waterfowl species lacking any differences in ornamentation, coloration, size or behavior between the sexes.

Acta Ornithologica – Abstract Vol 39 1. All ornitholoogica nests were found in unmown and ungrazed vegetation.

Recent reports suggest that lyrebirds may be threatened by chlamydial infection. Honey Buzzard, Pernis apivorusmigration, water crossing, orientation, geography, wind, navigation.

Low incidence of polygyny revealed in a long-term study of the Sedge Warbler Acrocephalus schoenobaenus in the natural wetlands of S Poland. The Capercaillie is one of the most seriously endangered bird species in Poland. During a four-year study of the breeding biology and ecology of an atypical population of Barn Swallows nesting in 13 abandoned post-war bomb shelters, the unexpected presence of foreign juveniles in active nests with nestlings was recorded on eight occasions.


Muzeum i Instytut Zoologii Polskiej Akademii Nauk – Acta Ornithologica

The study was carried out in 3 plots in the province of Ornitjologica Pakistan in November During the study period densities varied from Different pairs timed their breeding such that the beginning of the season from October to September of the next calendar year overlapped the dates of completion from April to December.

Mistle Thrush densities differed significantly between winters. However, there were differences among ornitholoigca contributing most to the turnover according to area size classes.

The research was carried out using photo registration on a radar screen during the spring and autumn seasons of Non-excavators did not select holes according to tree species or size, but preferred holes in living trees and branch holes.

Suggested causes for most of the larger differences among the three cities in the densities of particular species are the variation in the richness of vegetation higher in both German cities and differences in the stage of synurbization i. The relationship between nest size and the likelihood of predation was still significant even when the effects of laying date and nest height were controlled. Analyses of hatching and fledging success showed that the quantity and proportion of moss in the nest structure as well as the nest size influenced the performance of eggs and nestlings at the nest.

This may be related to differences between males and females in their respective territories and foraging techniques. Impact of wind and geography on orientation behaviour of adult Honey Buzzards Pernis apivorus during migration over water. In this paper the available data on bird mortality on roads is reviewed. The age structure of the tree stands, the area of shrub coverage and the number of predators apart from squirrels were similar in both parks. Ardeola-International Journal of Ornithology.


Not every article in a journal is considered primary research and therefore “citable”, this chart shows the ratio of a journal’s articles including substantial research research articles, conference papers and reviews in three year windows vs.

The large proportion of locusts and flies in the diet indicates that the Cattle Egret may play an important role in pest control. Males sang from mid-March till late July with a song rate varying between 3. This study investigated the influence of prevailing winds and geography on the orientation behaviour of migrants during this sea crossing from ornithologicq over two islands, one on the northern side, the other on the southern side of the Channel of Sicily.

Repeatability of egg dimensions within the clutches of Bearded Tit Panurus biarmicus. 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.

Clutch size was negatively correlated with total nest mass but positively correlated with the proportion of the mass of the lining in the total nest mass. Ornitholgoica density of Whinchat territories was negatively correlated with the size of an abandoned field. Abundance of thrushes decreased with winter progression.

However, nest size has not been found to be related to predation probability within any species. Havendijk 56, Gorinchem, XB, Netherlandse-mail: That this population has long been isolated was also confirmed by the pronounced genetic differentiation from the other Polish populations. Polyterritoriality and the first record of polygyny in the Red-breasted Flycatcher Ficedula parva in a primeval forest.