<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">Results from six ringing stations located along sea coast (maximally 517 km apart) were used to check if the method of catching birds in traps (mist-nets, heligoland) can be applied in analysing the real pattern of daily migrants migration. On the basis of catch dynamics of nearly 440 000 Great Tits, it was possible to demonstrate that the method of catching can be used successfully in studies of the daily passage of migrants, not only in order to probe the overall intensity of migration, but also to analyse migration routes and the influence of atmospheric conditions on birds' movements. It was found that migrating Great Tits cover the area uniformly, but atmospheric conditions disturb the passage.</abstract>

Department of Zoology, University of Podlasie, Prusa 12, PL-08-110 Siedlce, Poland

Bird Migration Research Station, University of Gdańsk, Przebendowo, PL-84-210 Choczewo, Poland

Catch numbers at ringing stations is a reflection of bird migration intensity, as exemplified by autumn movements of the Great Tit (<italic>Parus major</italic>)

<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">Observations on the autumn migration of the Marsh Harrier were made at two sites of the central Mediterranean: the Circeo promontory (central Italy) and the island of Malta. The aim was to investigate the passage of birds belonging to different sex and age classes. At the Circeo promontory a total of 787 individuals was counted, 37.5% of which were juveniles. Over the island of Malta the passage of 1535 Marsh Harriers was recorded with an evident peak comprising 906 birds on 13 September. At both sites males outnumbered females, mostly within the first half of September. Because, at least among adults, an imbalance towards females has been reported in the population wintering in central Europe, our results suggest that adult males could have a stronger tendency to migrate over a long distance, crossing the central Mediterranean area in large numbers. Whereas females, being larger than males, are able to tolerate colder temperatures and fast longer. Finally, our counts confirm the increase of the European population of the Marsh Harrier, which has occurred for the last three decades.</abstract>

Via Carlo Alberto 4, 89046 Marina di Gioiosa Jonica (RC), Italy

St. Michael Flat 2, Paris Street, Zebbug, Malta

Autumn migration of Marsh Harriers (<italic>Circus aeruginosus</italic>) across the Central Mediterranean in 2002

<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">Migratory directions of Sedge Warblers tested in the Emlen funnel and Busse's flat cage during autumn migration in the Balkan region were studied. Some methodological aspects of orientation data analysis were discussed as well. According to orientation data at least two populations of the Sedge Warbler migrate in NE Bulgaria: one in SW direction <italic>via</italic> Greece, crossing the Mediterranean Sea to Libya, and then Central Africa and second one through Turkey, (Cyprus?) and the Middle East to the eastern parts of winter quarters (SE direction). This pattern is clear when a calculation method that assumes reverse and axial behaviour of birds (<italic>i.e.</italic> reversing vectors from northern sectors) is applied. Nature of "reverse migration" is still not well recognised and seems to be very interesting for further studies.</abstract>

Insitute of Zoology, Bulgarian Academy of Sciences, Blvd. Tzar Osvoboditel 1, 1000 Sofia, Bulgaria

Directional behaviour of the Sedge Warbler (<italic>Acrocephalus schoenobaenus</italic>) studied in two types of orientation cages during autumn migration - a case study

<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">In the study we have examined the relation between the European macrosynoptic weather situation and the number of birds captured a day at four Hungarian ringing stations during the autumn migration. Along the research we examined the data of 32 809 individuals of 8 species using different migration strategies. Using the daily capture data at the four stations we constructed the migration diagrams for each year. We chose the migration peak days within ten-day periods and examined how these peak days or their preceding days are distributed over Péczely's macrosynoptic weather situations. Comparing the 8 bird species no significant difference in distribution of the peak days over the macrosynoptic weather situations was found (ANOVA: <italic>F7,376</italic> = 1.81, <italic>p</italic> = 0.084). 85% of the migration peak days for all the species were connected with anticyclones, 10% with meridional cyclone / cold front situation and 5% with other cyclonic ones. The most frequent weather situation on the migration peak days was central anticyclone, which occurred in 61 cases.</abstract>

Department of Zoology, Berzsenyi College, Szombathely, P. O. Box 170, H-9701, Hungary

Department of General Zoology, Faculty of Science, Eötvös University, Budapest, Pázmány P., H-1088, Hungary

BirdLife Hungary, Pécs, Siklósi 22, H-7622, Hungary

Influence of macrosynoptic weather situation on the autumn migration of birds in Hungary

<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">At a site in Tömörd (W Hungary) in 2000-2001, numbers of Goldcrests peaked on the last days of October and the first days of November (24 Oct. - 10 Nov.). Migration of both sexes was somewhat differentiated - females migrated a little bit earlier than males. Goldcrests arriving in the peak migration periods stored significantly more fat than individuals ringed in the other periods (ANOVA: <italic>F4,305</italic> = 28.6, <italic>p</italic> &lt; 0.0001). The spatial occurrence of migrating Goldcrests revealed clumped distribution - 83% of the total captures took place in a dense scrubland, 17% in a grassland overgrown by bushes. During the migration there were more males - the average sex ratio in Tömörd was 1.61 : 1. These results are discussed in relation to the species' migration strategies and patterns of occurrence in northern Europe.</abstract>

Department of Zoology, Berzsenyi College, Szombathely, P.O. Box 170, H-9701, Hungary

Local Group of County Vas, BirdLife Hungary, Szombathely, P.O. Box 170, H-9701, Hungary

Autumn migration of the Goldcrest (<italic>Regulus regulus</italic>) in western Hungary

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The Ring

 The on-line version of the journal is a primary one to the printed edition. The Ring is an international journal dealing with problems of bird ringing, migration and monitoring bird numbers. The main fields of interest are original papers, review articles and methodical discussions. Information, progress reports, personal comments and short notes or news are also accepted to the informative columns of the journal. Although papers are refereed, conclusions, opinions and discussion are published on the author's responsibility. Innovative and even controversial ideas are appreciated.  Why subscribe and read  Excellent source of high quality research on bird migration; original articles on:   migration strategies (long jumps vs. short jumps; stopover ecology; fattening strategy; obligatory vs. partial migration, etc.);  migratory patterns (breeding/wintering areas and flyways; migration dynamics and phenology, distances and migration speed, etc.);  populational differentiation of migrating birds (incl. mechanisms isolating different populations, morphological differentiation and morphometrics studies, etc.);  long-term monitoring of migratory bird populations.   Why submit   transparent, comprehensive and fast peer review,  innovative ideas are appreciated.   Rejection Rate   About 10%   Archiving  Sciendo archives the contents of this journal in Portico - digital long-term preservation service of scholarly books, journals and collections.  Plagiarism Policy  The editorial board is participating in a growing community of Similarity Check System's users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process. 

The Ring

Volume 25 (2003): Issue 1-2 (December 2003)

Catch numbers at ringing stations is a reflection of bird migration intensity, as exemplified by autumn movements of the Great Tit (Parus major)

Autumn migration of Marsh Harriers (Circus aeruginosus) across the Central Mediterranean in 2002

Directional behaviour of the Sedge Warbler (Acrocephalus schoenobaenus) studied in two types of orientation cages during autumn migration - a case study

Influence of macrosynoptic weather situation on the autumn migration of birds in Hungary

Autumn migration of the Goldcrest (Regulus regulus) in western Hungary

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