2009年5月17日に仲ノ神島海鳥集団繁殖地においてカツオドリ亜種Sula leucogaster brewsteri 1羽を観察して写真撮影をした。頭部，頬および喉が白色味を帯び，頸部にかけて徐々に淡褐色になることが同定形質であった。眼の周囲の裸皮部は濃青色であり，また幼鳥や若鳥にみられる胸の下部から腹の白色羽衣の暗色斑を欠くことから，本個体は雄の成鳥であると判断された。本観察は，日本におけるカツオドリ亜種 S. l. brewsteri の初記録である。
Predation by a wild Common Kingfisher Alcedo atthis on a colubrid snake, Amphiesma vibakari vibakari, was observed on 31 January 2010 in Tokyo. Total length of the snake was estimated as less than 20 cm. This is the first record of predation on a snake by the Common Kingfisher in Japan.
Two-barred Greenish Warblers Phylloscopus plumbeitarsus were observed and photographed on Hegura Island (37°51′05.1″N, 136°55′06.2″E), Ishikawa Prefecture, on three years: from 24th to 25th May in 2000 (3 individuals), on 20th May in 2001 (1 individual) and from 24th to 25th May in 2005 (3 or more individuals). They were distinguished from similar species (the Arctic Warbler P. borealis, Green Leaf-warbler P. nitidus, Greenish Warbler P. trochiloides, Pale-legged Leaf-warbler P. tenellipes, Sakhalin Leaf-warbler P. borealoides and the Large-billed Leaf-warbler P. magnirostris) by differences in the shape of the supercilium and wing bars, in the color of the legs, bill, and tip of the outer tail feathers, in their call, and in the wing structure. I also summarized the records of P. plumbeitarsus in Japan based on the data from the literature and personal communication. Eleven records (15 individuals or more) were obtained from 13th September 1998 to 29th May 2009 and seven records (11 individuals or more) occurred in mid and late May in 1999 to 2009.
A single Spotted Sandpiper Actitis macularia was observed alongside a river at Atsunai (42°48′ N, 143°49′ E), Urahoro, eastern Hokkaido from 17 May to 18 May, 2003. This is the first record of this species in Japan.
Observation of the breeding Great Crested Grebe Podiceps cristatus was carried out at two small man-made irrigation ponds, Shin Pond and Mochinosawa Pond, in Aomori Prefecture. A pair of grebes bred every year at Shin Pond from 2006 to 2009, and at Mochinosawa Pond from 2008 to 2009, respectively. The apparently same pair bred in Shin Pond for four successive years. Pairs in both sites attempted second broods within a breeding season. The absence of conspecific competition for diet or nesting-sites, and the presence of abundant fish in these two sites might facilitate these attempts at second broods.
In April 2009, the surviving family of the late Mr. Ichiro Kawai donated bird skin, egg and nest specimens to the Yamashina Institute for Ornithology. Mr. Kawai was a naturalist who lived in Yamagata Prefecture and died in January 2009. His collection consists of 51 skins of 29 species, 114 clutches of 70 species and 14 nests of 10 species. From the 1920s to 1960s, these specimens were mainly collected from Yamagata and Oita Prefectures in Japan, and from overseas.