Envisioning the future of Ornithological Science
　　Masaoki TAKAGI 　　p. 1

Nest types and microhabitat characteristics of the Japanese Marsh Warbler Locustella pryeri
　　Masao TAKAHASHI, Sakura AOKI, Masayoshi KAMIOKI, Toshihiro SUGITA and Keisuke UEDA 　　p. 3 - 13

Analyses and predictions of the presence and reproduction of three water birds at ponds in Osaka Prefecture with consideration of spatial auto-correlation
　　Ko-ichi TAKAKURA, Takayuki NISHIO and Masaaki KITANO 　　p. 15 - 26

Characteristics of trees excavated by the Japanese Pygmy Woodpecker Dendrocopos kizuki
　　Kanomi SHIINA, Osamu KASEGAWA and Seigo HIGASHI 　　p. 27 - 33

Phylogenetic relationship of the Greater White-fronted Goose Anser albifrons subspecies wintering in the Palaearctic region
　　Masaki EDA, Tetsuo SHIMADA, Tatsuya AMANO, Katsumi USHIYAMA, Chitoshi MIZOTA and Hiroko KOIKE 　　p. 35 - 42

No evidence of interspecific competition regulating the urban avian communities of the Kanto region, Japan
　　Osamu MIKAMI and Hisashi NAGATA 　　p. 43 - 50

Estimation of the population size and viability of the Bonin White-eye Apalopteron familiare in the Bonin Islands, Japan
　　Kazuto KAWAKAMI and Hiroyoshi HIGUCHI 　　p. 51 - 56

Sexual size dimorphism in Streaked Shearwaters Calonectris leucomelas
　　Masaki SHIRAI, Yasuaki NIISUMA, Kenji TSUCHIYA, Maki YAMAMOTO and Nariko OKA 　　p. 57 - 62