Introduction My current objects of interest are waterbirds during wintering and migration. Impact of anthropogenic factors on their populations, especially those associated with the marine environment. An important element of my research is determining the scale of the bycatch of seabirds. During the breeding season, I study river ecosystems and estuaries, in particular, I deal with Black Tern. Disciplines: Ornithology Ecology Systematics (Taxonomy) Zoology Skills and expertise: Biodiversity, Conservation Biology, Marine Ecology, Taxonomy, Species Diversity, Invasive Species, Systematics Biodiversity, Monitoring, Wildlife Ecology, Ecosystem Ecology, Ecological Monitoring, Coastal Ecology, Ecological Modeling, WetlandsOrnithology, Wildlife Conservation, Biodiversity Assessment, Distribution, Landscape Ecology, Rivers Ecology.