Rozmieszczenie i liczebność kolonii lęgowych gawrona Corvus frugilegus w powiecie wołomińskim w latach 2012-2013
Journal Title: KULON - Year 2014, Vol 19, Issue
Abstract
Field research was carried out in Wołomin County in late April and early May 2012-2013. In 2012, a total of 1322 nest in 26 breeding colonies were located, and in 2013, it was 1151 nests in 23 rookeries. In sum, the number of different locations was 27. Colonies of up to 50 nests accounted for ca 73%. All were located in the vicinity to human settlements. Rookeries were unevenly distributed, but there was a linear connection between them. In both years, urban colonies accounted for ca 50%, but they comprised less than 20% of all breeding pairs. The mean density of the breeding population was 139 pairs/100 km2 in 2012 and 121 pairs/100 km2 in 2013. Nest trees represented 16 genera. Most nests were built in pines, birches and poplars. There was no preference for the tree genus. This paper demonstrates the need to continue the fieldwork in the study area, as well as to standardize the methods of assessing the number of rooks in the whole country.
Authors and Affiliations
Justyna Lewandowska
Keywords
Related Articles
- EP ID EP166226
- DOI -
- Views 74
- Downloads 0
Herpetofauna Rezerwatu Przyrody "Wolica" i terenów sąsiednich
The nature reserve Wolica (area of 2.78 ha) protects Triassic outcrops and a small pond. It is located in the central part of the Świętokrzyskie Province (Central Poland). In the vicinity of the reserve, forests and farm...
Obserwacja tokującego kurhannika Buteo rufinus na Nizinie Południowopodlaskiej
On 9 July 2013, a displaying Long-legged Buzzard Buteo rufinus was observed near the village of Błażeje (Eastern Poland). It was accompanied by a much smaller Common Buzzard Buteo buteo. The displaying Long-legged Buzzar...
SKŁAD POKARMU PŁOMYKÓWKI TYTO ALBA W DOLINIE DOLNEJ NOTECI W ROKU 2002
The Barn Owl Tyto alba pellets were collected at seven sites in the lower Noteć valley and surrounding area in 2002. In total, 1,471 individuals of vertebrate owls’ prey were indentified in the analysed bone material. Sm...
WYSTĘPOWANIE PLATYPSYLLUS CASTORIS (RITSEMA, 1869) (COLEOPTERA: LEIODIDAE) I STICHORCHIS SUBTRIQUETRUS, (RUDOLPHI, 1814) (ECHINOSTOMIDA: PARAMPHISTOMATIDAE) U BOBRA EUROPEJSKIEGO CASTOR FIBER W GOSPODARSTWIE RYBACKIM NOWOSIOŁKI W BIAŁORUSI
In gastrointestinal system of four beavers from the Fish Farm Novosiolky (Belarus), we discovered some parasites identified as Platypsyllus castoris (Coleoptera) and Stichorchis subtriquetrus (Trematoda). Platypsyllus ca...
Stanowiska nęka świerszczojada Sphex funerarius (Gussakowskij 1934) (Hymenoptera: Sphecidae) na Pojezierzu Mazurskim
In 2011-2012, tree sites of the Sphex funerarius Gussakowskij 1934, a thermophilous hymenopteran rare in Poland and Central Europe, were found in the Mazurian Lakeland. This is a new species to the Mazurian Lakeland. All...