M.Sc. Tezi Görüntüleme

      Eurasian Jay (Garrulus glandarius) that is the most beautiful bird species of the Corvidae family, having a wide distribution around the World and it is very easy to distinguish from other birds by its morphological characteristics and blue stripes on its wings. In this study, general observations and counted birds 5 times, researches were carried out on the G.g.krynicki species belonging to the Eastern Blacksea region about its habitat use, population status and nesting preferences in the Karadeniz Technical University main campus in 2016 and 2017. The results show that the Eurasian jays distributed in high altitude areas are now landed at sea levels. Eurasian Jay individuals ranging from 14 to 81 and 8 different nest sites were identified in the study area by counting. In general, these nests are located on 4 to 5 meters of the conifers in April and May of the same year in campus. These species are; Caucasian fir (Abies nordmanniana), Scots pine (Pinus slyvestris), Radiata pine (Pinus radiata), Turkish pine (Pinus brutia) and Blue duglas (Pseudotsuga menziesii). Species threatening Eurasian jay in the study area; pine marten (Martes martes), Least weasel (Mustela nivalis), Red Squirrel (Sciurus vulgaris), carrion crow (Corvus corone) and Eurasian sparrowhawk (Acipiter nisus). At the same time, it has been determined that this intensive population of Eurasian Jays is a major threat to other bird species, and a solution to these threats has also been proposed.