Melnikov Evgeny Yurievich RussiaSaratovSSU. Department of Biology. Department of animal morphology and ecology., 410012, Saratov, Astrakhanskaya str., 83, building. 5, Faculty of Biologyskylark88@yandex.ru Author's articles ОСОБЕННОСТИ ПРОСТРАНСТВЕННОГО РАСПРЕДЕЛЕНИЯ ГНЕЗДОВЫХ УЧАСТКОВ ПЕСТРОГО ДЯТЛА (DENDROCOPOS MAJOR) В ПРИГОРОДНОМ ЛЕСОПАРКЕ г. САРАТОВА ГНЕЗДОВАНИЕ СИРИЙСКОГО ДЯТЛА (DENDROCOPOS SYRIACUS) В ОКРЕСТНОСТЯХ САРАТОВА Rare and Disappearing Birds in the Red Book of Saratov Region Structure of Colonies and Nesting Peculiarities of Common Starling (Sturnus vulgaris) and Tree Sparrow (Passer montanus) in Green Zone of Engels City Luminescent Determination of Polycyclic Aromatic Hydrocarbons on Cellulose Diacetate Matrix Modified by Surfactants