Japanese Journal of Ornithology

Tongue of Two Species of Prionochilus from the Philippines, with Notes on Feeding Habits of Flowerpeckers (Dicaeidae)

Hiroyuki MORIOKA

1992 Volume 40 Issue 3 Pages 85-91
Published: September 25, 1992
Released on J-STAGE: September 28, 2007

DOIhttps://doi.org/10.3838/jjo.40.85

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The tongues of Prionochilus plateni and P. olivaceus were examined and redescribed. These tongues are very similar to the primitive condition found in Melanocharis. Implications of these facts are discussed. Prionochilus and several thick-billed species of Dicaeum probably retained the primitive, unspecialized tongue in the absence of a need for nectar feeding, while they are typical Dicaeum in many respects.

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Social Organization of the Crow Tit Paradoxornis webbiana during the Non-breeding Season

Chang-Hoe KIM, Satoshi YAMAGISHI, Pyong-Oh WON

1992 Volume 40 Issue 3 Pages 93-107
Published: September 25, 1992
Released on J-STAGE: September 28, 2007

DOIhttps://doi.org/10.3838/jjo.40.93

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The social organization of the Crow Tit Paradoxornis webbiana fulvicauda during the non-breeding season was studied in the Dongguk University Forests, Namyangju-gun, Kyunggi-do, Korea, from April 1988 to September 1989. Flocks were observed throughout the year, and pairs were observed from March to August. Flock size increased throughout autumn and was stable throughout winter. From October to January, three flocks (main flocks settled in the area) were recognized as independent units. Their home ranges were along a stream and overlapped each other. The encounter of main flocks among themselves seems to have taken place less than with other flocks (peripheral flocks unsettled in the area). The flock size gradually decreased with the approach of the breeding season. Pairs were formed between the members of the same flock, and they built their nests within their winter ranges (home ranges). Many juveniles left their natal sites in a few months after they hatched. On the other hand, many juveniles that fledged outside of the study area immigrated into the winter ranges of main flocks and formed flocks with the individuals that remained in breeding sites.

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Age Determination of the Hazel Grouse and Carrion Crow based on the Layered Structure of the Mandible

Atsushi MITANI, Yuzo FUJIMAKI

1992 Volume 40 Issue 3 Pages 109-111
Published: September 25, 1992
Released on J-STAGE: September 28, 2007

DOIhttps://doi.org/10.3838/jjo.40.109

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"First Record of the House Sparrow in Japan" by M. Sano, is Valid for the Male only, not for the Two Young

Masahiro FUJIOKA

1992 Volume 40 Issue 3 Pages 112-113
Published: September 25, 1992
Released on J-STAGE: September 28, 2007

DOIhttps://doi.org/10.3838/jjo.40.112

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Sano (1990) stated that "one male and two young of the House Sparrow Passer domesticus were found on Rishiri Island." Evidence he presented, however, is too weak to exclude the possibility that the two birds were juveniles or females of another native species, the Cinamon Sparrow, Passer rutilans.

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Spreading distribution of the Houth Sparrow Passer domesticus in Hokkaido

Masao Sano

1992 Volume 40 Issue 3 Pages 113-114
Published: September 25, 1992
Released on J-STAGE: September 28, 2007

DOIhttps://doi.org/10.3838/jjo.40.113

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