The Bulletin of the Japanese Bird Banding Association
Online ISSN : 2187-2481
Print ISSN : 0914-4307
ISSN-L : 0914-4307
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Volume 16, Issue 1
Displaying 1-3 of 3 articles from this issue
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  • Numbers of Newly Banded Birds by Prefecture (2000)
    The Japanese Bird Banding Association (Ed.)
    2001 Volume 16 Issue 1 Pages 1-17
    Published: 2001
    Released on J-STAGE: August 20, 2015
    DOIhttps://doi.org/10.14491/jbba.AR120
    JOURNAL FREE ACCESS
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  • Roket Net Capture and Transmitter Attachment for Tancho Grus japonensis
    Hiroyuki MASATOMI, Kunikazu MOMOSE
    2001 Volume 16 Issue 1 Pages 18-26
    Published: 2001
    Released on J-STAGE: August 20, 2015
    DOIhttps://doi.org/10.14491/jbba.AR121
    JOURNAL FREE ACCESS
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    Rocket nets were used for the first time in capture of Tancho (Red-crowned Crane) Grus japonensis. The capture was implemented on July 16 2001, at a grass field in Tsurui, eastern Hokkaido (Figure 1), which is one of the crane's three major winter feeding stations. Five young non-breeding cranes were captured with a single shot of the net. These cranes were measured sexed, checked for overall health ststus, and banded with metal rings and plastic color rings. The measurements showed that males were clearly larger than the females at the head and legs (Figures 2, 3, and 4). In addition, the captured cranes were fitted with radio-telemetry transmitters (Figure 5). These devices were designed to rust off after a period of six months, but were pecked off within 1 to 36 days, indicating that a new system for radio-telemetry tracking is required.
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  • Measurements and Habitual Notes of 24 Species of Raptors (FALCONIFONIFORMES and STRIGIFORMES) in Niigata Prefecture.
    Tatsuo KAZAMA, Akira SAITO
    2001 Volume 16 Issue 1 Pages 27-34
    Published: 2001
    Released on J-STAGE: August 20, 2015
    DOIhttps://doi.org/10.14491/jbba.AR122
    JOURNAL FREE ACCESS
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    A total of 3,414 raptors, representing 21 species, were recovered either injured or dead in Niigata Prefecture between 1971 and 2001. Black Kite (total 1,612) and Ural Owl (total 585) topped the list of both injured and dead birds, indicating that these two species are the most numerous raptors in the Prefecture. Over the thirty year period, 1,462 individuals in 22 species were measured and carefully observed. Close observation of external morphology identified characteristics for field determination of sex for many species. Sexual differences in body weight were also researched, and length of talons was measured and correlated with feeding habits.
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