著者
飯嶋 良朗
出版者
The Ornithological Society of Japan
雑誌
(ISSN:00409480)
巻号頁・発行日
vol.31, no.1, pp.17-21, 1982

(1)1972年から1981年までの10年間に,北海道十勝地方南部の大樹町において,7例のツバメの繁殖が確認され,このほかに4例の観察が記録された.最も早い観察記録は4月28日(開進,1981)であった.<br>(2)巣はすべて,農耕地中に点在する牧場の牛舎の天井に作られた.営巣地は川沿いに発見され,7巣中6巣が紋別川沿いにあった.<br>(3)7例の繁殖例のうち,6例がふ化に成功し,そのうち5例が巣立ちに成功した.同年に2回繁殖したのは,巣立ちに成功した5例中の2例であった.<br>(4)平均産卵数は3.5(1回目3.3,2回目4.0),平均ふ化率は86.8%であった.
著者
飯嶋 良朗
出版者
公益財団法人 山階鳥類研究所
雑誌
山階鳥類研究所研究報告 (ISSN:00440183)
巻号頁・発行日
vol.15, no.2, pp.175-176, 1983

Nine species of stragglers and rare birds were recorded from Taik, southern Tokachi district, Hokkaido, from September 1970 to May 1981. A single bird of <i>Accipiter gentilis albidus</i> was observed on February 10, 1981 at Hikata. A single bird of <i>Falco rusticolus</i> was seen from January 11 to February 20, 1980: January 11 at Kosei, January 20 at Shimo-taiki, February 1 at Memu and February 20 at Furubetsu. A single bird of <i>Falco columbarius</i> was observed on March 10, 1979 at Toyosato. A single bird of <i>Grus grus</i> was observed in September, 1970 at Bisei and November, 1971 at Seika. Two birds of <i>Grus monacha</i> was seen in late October at Nakajima, from 1972 to 1974, and a single bird of <i>G. monacha</i> was seen at Nakajima from April 29 to May 6, 1981. A single bird of <i>Grus canadensis</i> was seen from December 5 to 23, 1979 at Seika. Two species of <i>Grus</i> were seen in company with <i>Grus japonensis</i>. A single bird of <i>Tringa guttifer</i> was seen from September 21 to 23, 1980 at Kosei. A single bird of <i>Emberiza pusilla</i> was seen among a flock of <i>Acanthis flammea</i> from January 25 to 28, 1978 at Kaishin. A single bird of <i>Corvus monedula dauuricus</i> was seen from April 3 to 8, 1978: April 3 at Taiko and April 3 at the town of Taiki, and on March 13, 1980 at Takuhoku. These records are the first ones from Tokachi District.