<div>Background: Human activity causes significant transformations in the structure and functioning of biocenoses, which in turn affect the animal world, particularly avian fauna. Alongside anthropogenic factors, the seasonal availability of food resources and habitat characteristics play a key role in shaping the population dynamics of thrushes (Turdidae). These birds are capable of utilizing seasonal surpluses of resources and may engage in competitive interactions, particularly during the breeding season. 
 
Methods: From 2017 to 2023, systematic field studies were conducted in the city of Stepanakert and its surrounding areas. The study focused on the seasonal dynamics, annual life cycles, primary dietary components, preferred habitats and seasonal fluctuations in the population of four Turdidae species. Food samples from fledglings were collected using neck ligature techniques. A total of 698 blackbirds (Turdus merula), 652 fieldfares (Turdus pilaris), 362 mistle thrushes (Turdus viscivorus) and 443 song thrushes (Turdus philomelos) were examined. 
 
Result: The findings indicate that thrushes exhibit clear habitat selectivity, influenced by the seasonal availability of food and the birds&rsquo; physiological state. Blackbirds were found to be the most widespread and dominant species across all studied landscapes throughout the year. The diet of fledglings was largely composed of invertebrates. Earthworms formed the main component in spring; in spring and summer, various insects and their larvae were consumed; while in autumn and winter, thrushes shifted to feeding on fruits, berries and vegetable crops.</div>

Seasonal Changes in Food Supply Determine the Fluctuations of Thrush Populations in Stepanakert and Nearby Territories of Nagorno-Karabakh