Eight nesting males of the Gray-faced Buzzard Butastur indicus captured a total of 295 prey items in the study site during the breeding seasons from 1999-2002. Of these prey items, 142 were transported to their chicks and mates, and 153 were consumed by the males themselves. The difference in prey species between the two categories was not significant. In prey groups, however, the males carried significantly more voles and mice to their nests than they consumed themselves, whereas they themselves consumed more insects than they carried to their nests. Captured voles and mice were transported greater distances to the nests than were lizards and frogs.
One to five Magpies were observed in 1984, and almost every year from 1992, in Muroran, Noboribetsu, Shiraoi and Tomakomai, Iburi District, south-western Hokkaido. They nested in 1993 and 1994 in Muroran, in 1998 and 2000 in Noboribetsu, and in 1996 and 1998 in Shiraoi. In Wanishi, Muroran, two young with an adult were observed in the summer of 1993, strongly suggesting that they bred there. Based on these observation records, the Magpie is considered to be resident in this area.
We report two records of the Japanese Murrelet Synthliboramphus wumizusume in the breeding season. 1) On 21 April 2003, one adult was observed about 1km offshore of Uchiura Bay, Amatsu-Kominato. 2) On 23 May 2003, two adults and one chick were observed about 2km offshore of Katsuura Bay, Katsuura. This is the first observation record of a chick with adults on the sea around Chiba Prefecture.