Düzce Üniversitesi Bilim ve Teknoloji Dergisi (Jan 2023)
Reproductive Biology and The First Record of Egg Dimension of Collared pratincole (Glareola pratincola) from Southwest Turkey
Abstract
The aim of this study is to investigate the breeding biology of Collared pratincole, a migratory bird species in Antalya/Boğazkent (Turkey). There are a lot of habitat types in research area of 200 ha. This speciality serves great biodiversity. Field work was carried out from March to October between 2016 and 2017. 35 individuals and 16 nests were found in the first year and 25 individuals and eight nests in the next year. The egg volume has been calculated according to the formulation V=0.51 X L X W2 while egg index has been figured with regard to EI=100xW/L formulation. According to the hatchling size, the breeding success of the species was 86.7% in 2016 and 85.7% in 2017.Considering the fledgling size, the figures were 46.4% in 2016 and 66.7% in 2017 respectively. Many factors affecting the breeding success of the species were specified in the region. Hooded crows (Corvus cornix), for example, was detected as being the natural predator of the species. Furthermore, the invasion of the breeding areas by humans and human-related activities such as construction, tourism and agriculture also harmfully affects the breeding success. According to our study Antalya/Boğazkent is a very important bird area in Turkey.
