Meinertzhagen, R. Some relationships between African, Oriental, and Palearctic genera and species, with a review of the genus Monticola. The Ibis. 1951, 93 (3): 443–459. doi:10.1111/j.1474-919X.1951.tb05445.x.
Fujimaki, Yuzo. Breeding Bird Community of a Quercus mongolica Forest in Eastern Hokkaido, Japan. Japanese Journal of Ornithology. 1988, 37 (2): 69–75. doi:10.3838/jjo.37.69.
Fujimaki, Yuzo. Breeding Bird Community in a Deciduous Broad-leaved Forest in Southern Hokkaido, Japan. Japanese Journal of Ornithology. 1986, 35 (1): 15–23. doi:10.3838/jjo.35.15.
Chae, Hee-Young. Variations in Fledging Body Weight and Wing Length of Russet Sparrow Passer rutilans in Two Different Habitats. Japanese Journal of Ornithology. 1997, 45 (4): 215–225. doi:10.3838/jjo.45.215.
Tung, K. C.; Liu, J. S.; Cheng, F. P.; Yang, C. H.; Tu, W. C.; Wang, K. S.; Shyu, C. L.; Lai, C. H.; Chou, C. C.; Lee, W. M. Study on the species-specificity of Isospora michaelbakeri by experimental infection. Acta Veterinaria Hungarica. 2007, 55 (1): 77–85. PMID 17385558. doi:10.1556/AVet.55.2007.1.8.
Price, Roger D. The Menacanthus eurysternus Complex (Mallophaga: Menoponidae) of the Passeriformes and Piciformes (Aves). Annals of the Entomological Society of America. 15 July 1975, 68 (4): 617–622. doi:10.1093/aesa/68.4.617.
Tung, K. C.; Liu, J. S.; Cheng, F. P.; Yang, C. H.; Tu, W. C.; Wang, K. S.; Shyu, C. L.; Lai, C. H.; Chou, C. C.; Lee, W. M. Study on the species-specificity of Isospora michaelbakeri by experimental infection. Acta Veterinaria Hungarica. 2007, 55 (1): 77–85. PMID 17385558. doi:10.1556/AVet.55.2007.1.8.