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Predation of a Northern Goshawk nestling by a Japanese Rat Snake recorded in a monitoring video

DOI

Bibliographic Information

Other Title
  • アオダイショウによるオオタカのヒナの捕食事例

Abstract

<p>We monitored a nest of Northern Goshawk Accipiter gentilis to investigate the cause of continuous nestling loss in an isolated forest patch of Ichinoya Forest in Nagareyama City, Chiba Prefecture, eastern Japan. Using a closed-circuit television (CCTV) camera and digital video recording system, to limit potential disturbance to a minimum for the nesting birds, we monitored the nest during the breeding season of 2018. The result revealed that one of the two nestlings that survived in 2018 was predated by a Japanese Rat Snake in the nest during the night of 26 May, 2018. Although the nest tree was safe-guarded against climbing animals such as Masked musangs Paguma larvata (masked palm civet) or Raccoons Procyon lotor using an ironbelt, the snake approached the Goshawk nest using branches of an adjacent Japanese cedar tree. For a better conservation results, in areas where a deft climber such as the Japanese Rat Snake occurs, we recommend to restrict access to nest trees by managing the adjacent vegetation as well as with trunk protection for the nest tree itself.</p>

Journal

  • Bird Research

    Bird Research 15 (0), S1-S5, 2019

    Japan Bird Research Association

Details

  • CRID
    1390282763130657536
  • NII Article ID
    130007680084
  • DOI
    10.11211/birdresearch.15.s1
  • ISSN
    18801595
    18801587
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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