Between October and April, many sea-birds have been found dead on the beach on Niigata coast concentrated in Kashiwazaki area. This part is south of Sado I. and east of Noto Peninsula and owing to this situation, winds and sea currents are very complicated. Since 1959 to 1965, 16 species, 73 birds were collected and the correlations with temperature and winds were considered (possibly positive with day variation in temperature and wind velocity and consequent waves). From the sea currents and the state (freshness) of drifted birds, the distribution of these birds in March and November was estimated.
