Wintering records of Long-billed Ringed Plover Charadrius placidus in Tokachi district, eastern Hokkaido

The Long-billed Ringed Plover Charadrius placidus has considered to be a summer visitor in Hokkaido. However, one to ten Long-billed Ringed Plovers were observed in January and December in the middle reaches of Tokachi River. In addition to these records, some wintering records were obtained in Tokachi and Kushiro districts, eastern Hokkaido. These facts indicate that the Long-billed Ringed Plover is occur in small numbers during winter in eastern Hokkaido.