Abstract
The research mainly examines the survival rate of the magpie offspring which live in the northern regions of Kazakhstan, including the city of Pavlodar and its environs. The winter and spring of 2018–2019 were relatively cold and long in Pavlodar, creating unfavourable conditions for the survival of birds and their offspring, including magpies. The study analyses the main reasons that influence the changes in the reproduction and survival rates of magpies near Pavlodar. The results show that the quantity and activity of predators which threaten the eggs and chicks of magpies may change depending on the time of the year. The reproduction and survival rates of the offspring are determined based on the dynamic observations of magpie nests from egg laying to the moment chicks leave their nests. In 2018, the reproduction and survival rates of the magpie offspring were lower than in previous 7–8 years. In 2019, the number of the magpie offspring was much higher than in 2018; however, it still barely caught up with the normal reproduction rate. It is concluded that the death of eggs and chicks of magpies was mainly caused by grey crows and temperature changes. The study identifies and describes the characteristic features of adaptive strategies used by magpies in choosing their nesting sites.