The tidal flat Hachi-no-higata is located at the mouth of the Kamo River in Takehara City, Hiroshima Prefecture, Japan, with an area of about 22 ha at the lowest tide. Since the biodiversity of Hachi-no-higata is very high, the Japanese Ministry of Environment has designated it as one of the most important wetlands in Japan. However, the wild bird fauna of this city has rarely been surveyed. The present research was conducted by line census in the vicinity of Hachi-no-higata from April 2021 to October 2022. We found 95 species and 5 subspecies, including 16 designated as endangered species, in the 4th version of the Japanese Red List (5th edition) and the Red Data Book (2021) on Hiroshima Prefecture.