スズメについての二,三の知見(予報)
1962 年 17 巻 79-80 号 p. 172-178
詳細
1962 年 17 巻 79-80 号 p. 172-178
The Tree Sparrow, Passer montanus is the most important, problem bird' in rice field. This paper reports the preliminary field and laboratory experiments on grain eating of this species. Grains budding less than 20mm and covered less than 20mm deep were eaten. The influence by dressing with colours and eleven chemicals was not clear, though in the latter case some were possibly influencial.
