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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In the end of Aprilthe whole BNP was systematically searched; playbacks of drumming were used to enhance detection of birds. Juveniles had longer wings in autumn than in spring, but no differences were recorded in the adults in this respect. Carex species were dominant at the nesting sites in FM, but orjithologica Phragmites australis. Havendijk cata, Gorinchem, XB, Netherlandse-mail: Breeding birds were surveyed using the territory mapping method to assess turnover.
Acta Ornithologica – Wikipedia
This may be related to differences between males and females in their respective territories and foraging techniques. Most cavity entrances were exposed to the south. Nest size decreased significantly during the course of the breeding season and increased with nest height. Furthermore, an upward trend was observed for each separately investigated forest complex. At nest height from the side the nest was mostly only poorly visible. This fact should be attributed to the species nesting on steep coastal cliffs close to the livestock’s wintering areas.
There was no direct evidence for hybrid superiority or inferiority. In the forest, every individual territory consisted of several clumps of mistletoe on a few trees standing close together.
The number of Whinchat territories per occupied abandoned field lay between 1 and Lanius collurioPhasianus colchicusAnas platyrhynchosEmberiza schoeniclusColumba palumbus and Sylvia communis. The study was carried out in 3 plots in the province of Punjab Pakistan in November N o difference w as recorded between spring and autumn in the proportion of males to females, nor were significant differences found in the numbers of males and females ringed during the spring and autumn seasons.
BoxD Bielefeld, Germany. 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. Intraspecific brood parasitism in Barn Swallows Hirundo rustica nesting in bunkers. Honey Buzzard, Pernis apivorusmigration, water crossing, orientation, geography, wind, navigation.
Possible mechanisms underpinning this increase in density are discussed. Among the predators, small mammals were dominant in the clearing and inside the forest, and birds at the forest edge. Superb Lyrebird, Menura novaehollandiaepathogens, Escherichia colibacteria, Chlamydophila psittaciChlamydia.
Bird species richness and the numbers of birds were highest in the stratum from 1 ornithlogica 5 m in both the evergreen forests avta species and the moist deciduous forests 68 species. This article needs additional citations for verification. There were no differences in body mass or body condition between sexes in the two seasons. Trends for juveniles to be more parasitized than adults were detected, but they were statistically not significant.
An average parasitised nestling was supplied by its parents with 2. It is in English with summaries in Polish. The composition of the dominant food items and the average mass of food deliveries changed markedly with nestling growth. Two oenithologica of nest sharing by two Blackbird pairs each were recorded during a long-term urban study.
The vertical distribution of 94 bird species was recorded in evergreen forest, and of 90 in moist deciduous forest. Cattle Egret, Bubulcus ibisfood, South Africa. Abundance of thrushes decreased with winter progression. The nest entrance diameter ranges from 5. Further suggestions might be found on the article’s talk page.
Birds from the Sierra Nevada were the largest but there were no significant differences ornithollogica the other three areas.
One case of polygyny was recorded.
Predation was the main cause of nest losses. The nest height in tussocks of Juncus maritimus was greater.
Ground nesting in recultivated forest habitats — a study orntihologica artificial nests. This was in contrast to nests situated among Juncus maritimus stems. Bird flocks were observed also in open areas and they preferred to feed in pastures. Retrieved from ” https: The percent of birds sitting on the ground amounted to The water depth at the nest sites varied.
Effects of Protocalliphora parasites on nestling food composition in Corsican Blue Tits Parus caeruleus: Timing of breeding in the Feral Pigeon Columba livia f. The main reasons for losses were unhatched eggs, predators, starved nestlings and poor nest construction.