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Tichodroma 29 (2017) Pôvodné práce Krátke správy
Hniezdne zoskupenia vtákov v ochranných dubových lesoch sa môžu podobať zoskupeniam v prírodných dubinách Breeding bird assemblages in protection oak forests can be similar to those in natural oak forests Štefan PAVLÍK Výskum ekologických procesov, Cesta armády 235/7, 962 63 Pliešovce, Slovensko; e-mail: spavlik235@gmail.com Abstract. Protection oak forests, preserving soils from erosion on steep rocky slopes, ridges and screes, could be important habitats for breeding bird assemblages similar to those in natural oak forests. In the paper, I compared the structure of breeding bird assemblages and woody vegetation in an 105 years old protection oak forest with those in an 190 years old natural oak forest and in a 60–80 years old production oak forest. A modified point census method was used to estimate breeding bird abundance during the breeding period in 2016. The breeding bird assemblages within the three study plots were similar with respect to bird species composition, abundance and diversity. However, both the species number of cavity nesters and their abundance per census point were statistically significantly higher in the natural and protection forests than in the production forest. The abundance of crown nesters per census point was statistically significantly higher in the production forest compared with the natural and protection forests. Statistically significant differences were found also in the structure of woody vegetation. In total, only four statistically significant differences in the structure of breeding bird assemblages and woody vegetation were found between the natural and protection forests, but 14 between the natural and production forests, and 12 between the protection and production forests. This suggests that the protection forest under study was much more similar to the natural forest in relation to the structure of breeding bird assemblage and woody vegetation than to the production forest. Protection oak forests thus have high biocoenological potential because of their relatively natural character, and they represent refuges for preserving bird biodiversity in surrounding intensively managed production forests. Key words: birds, assemblages, ecology, oak forest, forest management, Slovakia  K migrácii a zimným nocoviskám piniek severských (Fringilla montifringilla) na Slovensku On migration and winter roosting sites of bramblings (Fringilla montifringilla) in Slovakia Miroslav FULÍN & Milan OLEKŠÁK Puškinova 15, 083 01 Sabinov, Slovensko; e-mail: miro.fulin@gmail.com Ždiar 166, 059 55, Slovensko; e-mail: milan.oleksak@sopsr.sk Abstract. Here we describe our knowledge on invasive occurrence and behaviour of ramblings on several roosting sites in Slovakia. Altogether we recorded three invasive occurrences of bramblings from 2004 to 2017. In 2004 we recorded invasive behaviour during the spring migration in Hrhov, SE Slovakia. Sex-ratio of 739 mist-netted individuals was biased to females (1:1.9). In winter periods 2008/2009 and 2016/2017 we observed wintering with massive roosting on two sites in E (Gelnica) and C Slovakia (Klenovec) with ca. 3.5 and 0.4 millions of individuals, respectively. Sex-ratio was strongly biased to males (>2.8:1) in both localities. Key words: brambling, irruption, winter roosting Hniezdne rozšírenie a početnosť výra skalného (Bubo bubo) v Národnom parku Malá Fatra (severozápadné Slovensko) v minulosti a súčasnosti Breeding distribution and abundance of Eurasian Eagle-Owl (Bubo bubo) in National park Malá Fatra (NW Slovakia) in the past and present Tomáš FLAJS Haľamovská 470/2, 027 21 Žaškov, Slovensko; e-mail: tomas.flajs@gmail.com ŠOP SR, Správa NP Malá Fatra, Hrnčiarska 197, 013 03 Varín, Slovensko Abstract: In Slovakia, Eurasian Eagle-Owl uses for nesting mainly rock formations and stone quarries, which are surrounded by sufficient amount of open areas important as foraging territories. Since 80’s of the last century, eleven nest sites has been known in the National park Malá Fatra. Precised and long-term systematic survey of eagle-owl was not conducted in the area. I have performed acoustic monitoring of the entire area of the National park accompanied with field survey of 18 sites. The sites with known historical breeding of the species, potential and known nest sites were surveyed. Altogether four breeding sites of the eagle-owl were found in the area in 2012–2017; only two remained active after 2014. This results suggest the species population decrease (from 4.9 pair/100 km2 to 0.9 pair/100 km2) and the concentration of the species at foothills of Malá Fatra Mts up to ca.750 m a.s.l. Key words: acoustic monitoring, Eurasian Eagle-Owl, population density Prehľad krúžkovania vtákov na Slovensku za rok 2016 Bird-ringing results in Slovakia in 2016 Michal JENČO, Matej REPEL & Miroslav DEMKO Slovenská ornitologická spoločnosť/BirdLife Slovensko, Krúžkovacia centrála, Námestie osloboditeľov 1, 071 01 Michalovce, Slovensko; e-mail: kruzkysk@gmail.com Abstract: In 2016, 57 ringers ringed altogether 59,352, of them 5,712 were nestlings. That number was 4.38 % lower compare to 2015. The ringed birds belonged to 154 species. The most numerous ringed species were Great Tit (Parus major, 6,891 individuals), Barn Swallow (Hirundo rustica, 6,729 ind.), Blackcap (Sylvia atricapilla, 5,311 ind.), Eurasian Siskin (Carduelis spinus, 5,110 ind.), Blue Tit (Cyanistes caeruleus, 3,763 ind.), European Robin (Erithacus rubecula, 3,227 ind.). The colour ringed schemes in Slovakia are given. Alltogether 572 abroad recoveries were registered, out of them were 125 individuals re-trapped in Slovakia and ringed abroad, 447 idividuals ringed in Slovakia re-trapped abroad. Key words: bird ringing, recoveries, colour ringing schemes 17. správa Faunistickej komisie Slovenskej ornitologickej spoločnosti/BirdLife Slovensko The 17th report of the Rarities Committee of the Slovak Ornithological Society/BirdLife Slovakia Richard KVETKO & FK SOS/BirdLife Slovensko SNP 14, 903 01 Senec, Slovensko; e-mail: richard.kvetko@centrum.sk Abstract: In 2016, the Rarities Committee of the Slovak Ornithological Society/BirdLife Slovakia reviewed 45 records, of which 41 were accepted in the category A, 4 in category C. First record of Radde´s Warbler (Phylloscopus schwarzi), Little Bunting (Emberiza pusilla) and Pallas´s Gull, two records of Griffon Vulture (Gyps fulvus), two records of Brant Goose (Branta bernicla), two records of Pink-footed Goose (Anser brachyrhynchus), one record of Ortolan Bunting (Emberiza hortulana) and one record of Yellow-browed Warbler (Phylloscopus inornatus) were the most interesting records in 2016. Rarities Committee accepted also some other valuable observations from the years 2015 and 2016. For example five records of Barnacle Goose (Branta leucopsis), four records of Red-breasted Goose (Branta ruficollis), four records of Egyptian Goose (Alopochen aegyptiaca), one record of Common Eider (Somateria mollissima), several records of Horned Grebe (Podiceps auritus), one record of Cattle egret (Bubulcus ibis), two records of Glossy Ibis (Plegadis falcinellus), five records of Pallid Harrier (Circus macrourus), five records of European Herring Gull (Larus argentatus), one record of Great Black-backed Gull (Larus marinus), three records of European Roller (Coracias garrulus) and one record of Greenish Warbler (Phylloscopus trochiloides). Key words: birds, rarities committee, rarities report, Slovakia Revízia historických literárnych údajov o hniezdení svrčiaka zelenkavého (Locustella naevia) pri Bratislave Revision of the historical literature records on the Common Grasshopper Warbler (Locustella naevia) breeding near Bratislava Peter RÁC Lermontovova 4, 811 05 Bratislava, Slovensko Abstract. Data on the Common Grasshopper Warbler (Locustella naevia) breeding from 1885 and 1886 was corrected as the breeding of Locustella fluviatilis using relevant references. Key words: Locustella naevia, Locustella fluviatilis, breeding, Bratislava, Danube Trnka A.: Recenzia: Mikulica O., Grim T., Schulze-Hagen K. & Stokke B. G. 2017: The Cuckoo. The Uninvited Guest Kronika – Významný slovenský ornitológ Štefan Danko jubiloval Kronika – Ľudovít Kocian – človek, učiteľ a zoológ |
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