The Eurasian griffon population in Serbia declined throughout the 20th century from widespread to a rare species, counting a total of 14 detected pairs in two colonies in western Serbia in the 1990s. Although the conservation measures have been implemented since the 1970s, they have had little effect on the further population decline until the supplementary feeding program started in 1989. In this paper, we present the results related to the population trends and reproduction parameters, following the establishment of a supplementary feeding program of the Eurasian griffon in Serbia based on a 34-year survey (1985–2018). By 2018, a total of 2458 tons of supplementary food was provided at three feeding stations. The population increased from 14 detected pairs in two colonies in 1992 to 262 detected pairs in four colonies in 2018. A total of 1807 juveniles were fledged, with breeding success – fledged chicks/laying pairs (i.e., breeding pairs) (0.81 ± 0.07; mean ± SD) and productivity – fledged chicks/detected pairs (0.57 ± 0.10). The amount of supplementary food was in a significant positive correlation with the number of detected and breeding pairs and the number of fledged juveniles. Furthermore, breeding parameters remained high despite the substantial increase in population size, implying that the population is far from saturation level. Our study emphasizes the importance of applied protection measures, especially supplementary feeding. The implementation of appropriate networks of feeding stations and the promotion of free-range livestock farming, as well as returning to the traditional way of disposing of dead cattle, would be a recommendation for future main conservation activities for the Eurasian griffon population in Serbia.

整个20世纪，塞尔维亚的欧亚狮riff种群从普遍物种减少到稀有物种，1990年代在塞尔维亚西部的两个殖民地总共发现了14对对。尽管自1970年代以来一直实施保护措施，但在1989年开始实施补充喂养计划之前，这些措施对人口的进一步减少几乎没有影响。在本文中，我们介绍了建立之后与人口趋势和繁殖参数有关的结果。根据一项为期34年的调查（1985年至2018年），对塞尔维亚的欧亚狮supplement进行了补充喂养计划。到2018年，三个饲喂站共提供2458吨辅助食品。人口从1992年的两个殖民地中的14个检测对增加到2018年的四个殖民地中的262个检测对。总共有1807羽幼鸽出雏，育种成功-雏鸡/成对对（即繁殖对）（0.81±0.07；平均值±SD）和生产力-雏鸡/成对对（0.57±0.10）。补充食物的数量与检测到的和繁殖的对的数量以及幼稚的幼鱼的数量呈显着的正相关。此外，尽管种群数量大幅增加，育种参数仍然很高，这意味着种群远未达到饱和水平。我们的研究强调了应用保护措施的重要性，尤其是补充喂养。实施适当的饲养站网络，促进自由放养的牲畜养殖，并恢复处理死牛的传统方式，