小笠原群岛 / Ogasawara Islands

The Ogasawara Islands are the Tokyo-administered oceanic island setting in 47.鸟有什么好看的：原来…丹顶鹤是秃的！. The episode describes them as remote from Honshu and, apart from bats, lacking naturally distributed mammals, which makes them important bird habitat and a useful setting for thinking about island evolution, endemic species, and ecological disturbance.

In the source, the island branch includes [[Nishinoshima|西之岛]], [[MinamiIoto|南硫磺岛]], the [[JapaneseBushWarbler|日本树莺]] subspecies case, and protection work around [[RedHeadedWoodPigeon|红头黑铃鸽]]. The islands connect local bird curiosity to Island Ecological Succession, Invasive Species Management, and Conservation Intervention.

Connections

• [[KawakamiKazuto|川上和人]] - researcher associated with the island cases in the episode.
• [[Nishinoshima|西之岛]] - volcanic island and seabird case.
• [[MinamiIoto|南硫磺岛]] - protected uninhabited island and field-expedition case.
• [[JapaneseBushWarbler|日本树莺]] - subspecies and gene-flow case.
• [[RedHeadedWoodPigeon|红头黑铃鸽]] - conservation case.
• Island Ecological Succession and Invasive Species Management - main ecology concepts.