Kolejny lęg sóweczki Glaucidium passerinum w Ostoi Biebrzańskiej (PLB200006) i sytuacja gatunku na tym terenie
Journal Title: KULON - Year 2017, Vol 22, Issue
Abstract
On 1 July 2017, a family of the Eurasian Pygmy Owl Glaucidium passerinum, which consisted of ! ve Q edglings was observed near Dobarz village (Trzcianne Commune, Podlaskie Province) in the Lower Biebrza Basin. > e owls were recorded in their optimal habitat at least until 9 July 2017. > is was the second case of con! rmed breeding of this species in the Natura 2000 „Ostoja Biebrzańska” SPA. The actual population size of the species in the area is estimated at 5-10 pairs. Lower number of confirmed breeding sites so far, may result from several factors. On one hand, it may be an effect of a lower number and activity of bird observers in „Ostoja Biebrzańska” in the past, that also applies to forest habitats, which nowadays are more often visited than before. On the other, this may result from partially migratory behaviour of this owl and might reflect its expansion from adjacent areas, mainly the Augustów, Białowieża and Knyszyńska Forests. The settlement of „Ostoja Biebrzańska” by the Eurasian Pygmy Owl is also enhanced by availability of favourable breeding sites.
Authors and Affiliations
Piotr Guzik, Waldemar Krasowski, Katarzyna Ramotowska, Krzysztof Henel, Michał Polakowski
Keywords
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