Identification of semiaquatic avifauna species in shallow waters of the Don River delta using an autonomous remote-controlled midget floating craftOleg Khoroshev, Ramiz Savitskiy, Pavel Plyaka, Georgiy Valov and Valerian IvanovE3S Web Conf., 210 (2020) 07012DOI: https://doi.org/10.1051/e3sconf/202021007012