Comparative Feeding Ecology of Two Geographical Forms of the Varied Tit, Parus varius varius in Southern Izu Peninsula and P. v. owstoni in Miyake I. of the Izu Is

HIGUCHI, H. (1975). Comparative Feeding Ecology of Two Geographical Forms of the Varied Tit, Parus varius varius in Southern Izu Peninsula and P. v. owstoni in Miyake I. of the Izu Is. Japanese Journal of Ornithology, 24(97–98), 15–28. https://doi.org/10.3838/jjo1915.24.15