Additions to the list of bird species in the Shushensky Bor National Park

This work includes additions to the existing annotated list of birds of the Shushensky Bor National Park, given in the book by ornithologist S.Yu. Petrov and senior state inspector S.V. Chumakov Birds of the Shushensky Bor National Park, published in 2020 in an electronic form. The paper provides general data on the avifauna of the national park, as well as the results of recent studies as of early 2021. The paper provides information on the sightings of 11 bird species that were not previously recorded in the park as a whole: Ptyonoprogne rupestris (Scopoli, 1769); Turdus merula (Linnaeus, 1758); Monticola saxatilis (Linnaeus, 1766); Ficedula hypoleuca (Pallas, 1764) аnd on individual cluster sites Mountain forestry: Podiceps cristatus (Linnaeus, 1758); Crex crex (Linnaeus, 1758); Charadrius dubius (Scopoli, 1786); Turdus obscurus J.F. Gmelin, 1789; Turdus iliacus (Linnaeus, 1766) and Perovsky forestry: Lanius borealis [excubitor] (Vieillot, 1807); Chloris chloris (Linnaeus, 1758), indicating the nature of their stay and biotopic distribution. The paper is illustrated with photographs taken on the territory of both clusters of the national park by employees of the Shushensky Bor National Park and by local birdwatchers.

Terrestrial and semi-aquatic scavengers on invasive Pacific pink salmon (Oncorhynchus gorbuscha) carcasses in a riparian ecosystem in northern Norway

Pacific pink salmon (Oncorhynchus gorbuscha) invasions, thought to originate from populations introduced and established in Russia, occurred along the Norwegian coast in 2017 and 2019. Despite several thousand pink salmon entering and establishing in northern Norwegian rivers, current understanding of the ecological effect of the species in northern Europe is limited. Scavengers feeding on pacific salmon carcasses are important vectors for the transport of marine derived energy and nutrients to terrestrial ecosystems in the Pacific Northwest, North America, where the salmon naturally occur. However the role of terrestrial and aquatic scavengers in the consumption and removal of pink salmon beyond the salmon’s native range is unknown. This study has identified terrestrial and sub-aquatic vertebrate scavengers on pink salmon carcasses in a sub-arctic river in northern Norway. Avian scavengers filmed by a camera placed near sites baited with pink salmon carcasses included the Eurasian magpie (Pica pica), hooded crow (Corvus cornix), common raven (Corvus corax), the European herring gull (Larus argentatus), redwing (Turdus iliacus) and goosander (Mergus merganser). However, the largest carcass weight was removed by red foxes (Vulpes vulpes). Carcasses entering Vesterelv River in 2019 were estimated to provide energy and nutrients to the river ecosystem an order of magnitude lower than in the Pacific Northwest. This study provides some of the first information in northern Europe on the mechanisms and quantification of energy and nutrient transfer from the ocean to riparian environments via introduced Pacific pink salmon. Results help to begin to determine the ecological effect of pink salmon and the development of appropriate management strategies.

Особенности размножения птиц зеленых насаждений города Сыктывкара

Изучены особенности гнездовой биологии двух видов дуплогнездников (полевого воробья – Passer montanus L. и мухоловки-пеструшки – Ficedula hypoleuca Pall.) и шести видов открытогнездящихся птиц (белой трясогузки – Motacilla alba L., дрозда-белобровика – Turdus iliacus L., дрозда-рябинника – Turdus pilaris L., серой вороны – Corvus cornix L., грача – C. frugilegus L. и сороки – Picapica L.) в условиях зеленых насаждений г. Сыктывкара и его окрестностей. Показано, что в условиях культурного ландшафта, как и в природных экосистемах, наблюдается межвидовая, сезонная и годовая изменчивость успешности размножения. Изменчивость показателей успешности размножения у разных видов зависела от совокупного действия хищничества (66–75 % общей гибели яиц и птенцов) и эмбриональной смертности (25–60 % гибели яиц и птенцов). В городе на успешность размножения птицбольшое влияние оказывает деятельность человека (25 % общей гибели яиц и птенцов), к которой, главным образом, относятся технические мероприятия, прямое разорение гнезд.

The presence of Haemoproteus spp in wild birds in Greece

Blood smears from 541 birds of 11 different species, killed in 4 continuous hunting periods (1977-1980), at Macedonian region, were examined. One hundred and six were found to be infected with the protozoon Haemoproteus. A higher infection rate was observed in the orphean warblers (Sylvia hortensis 58,3%) and, in descending order, in the turtle-doves {Streptopelia turtur 33,3%), the partridges (Perdix per dix 33,3%), the goldfinches (Carduelis carduelis 30,4%), the greenfinche orioles (Carduelis chloriis 29,5%), the house sparrows (Passer domesticus 27,6%), the blackbirds (Turdus merula 15%), the quails (Coturnix coturnix 7,62%), and the CettPs warblers (Cettia cetti 7,1%). The parasite was not found in blood smears from song thrushes (Turdus philomelos) and reavings (Turdus iliacus).