At the site of the "Adopt-a-Forest Initiative" in which Adventure World participates, two owls designated as "Near Threatened" on the Osaka Prefecture Red List were confirmed to have fledged naturally in June 2025. This successful natural reproduction of owls demonstrates that forest regeneration through the management of abandoned bamboo forests contributes to the recovery of biodiversity.
　To carry this initiative forward into the future, Adventure World will further promote participatory forest creation alongside the community. This will be done through owl nest box workshops, breeding environment improvements, and an exhibition introducing the Adopt Forest Activity at the "4th Bamboo Festival" (hosted by the Yumemigaoka Kishiwada Town Development Council) on Saturday, December 6, 2025.

〈About the 4th Bamboo Festival〉
Date & Time: Saturday, December 6, 2025
　　　　　10:00 AM - 3:00 PM
　　　　　※Held rain or shine; canceled in severe weather
Location: Yumemi Forest N (Behind Yumemi-ga-oka Office)
　Participation Fee: Free

〈Adventure World Booth Exhibition Content〉
1. Owl Nest Box Building Workshop
Conducting owl nest box building for installation in Adopt Forest activity sites
Participation Fee: Free
※Nest boxes made will be installed at activity sites at a later date
2. Panel Exhibition
・Adopt Forest Activities
・Owl Breeding Environment Improvement Activities

〈Owl Breeding Habitat Improvement Activities〉
Through the Adopt-a-Forest initiative in Kishiwada City's hilly areas, we are creating forests where diverse wildlife can thrive by clearing sections of abandoned bamboo groves and transitioning them into deciduous woodlands.This bamboo forest management also contributes to securing breeding habitats for owls, designated as Near Threatened species in Osaka Prefecture. Since Adventure World began these activities, confirmed results include owl breeding and maintaining ecosystem diversity, such as two owls fledging naturally in June 2025.


〈Timeline Leading to Natural Owl Breeding〉
June 2022　　　Bamboo forest maintenance begins
October 2023　　Installed 1 nest box (A)
January 2024　　　Installed 2 nest boxes (B, C)
March 2024: One egg laid in nest box A
April 2024: Egg in nest box A disappeared
Internal camera in nest box C damaged
June 2024: Raccoon intrusion confirmed in nest box B
December 2024: Owl activity confirmed in nest box A
202March 2025 Multiple owl entries/exits confirmed in Nest Box A
May 2025 Two chicks confirmed inside Nest Box B (approx. 10cm body length)
June 2025 Entries/exits confirmed including adult owl and chicks
Two chicks confirmed fledged

About the Adopt-a-Forest Program
https://www.pref.osaka.lg.jp/o120040/midori/midori/g-10-adopt-forest.html#adoptseido
The Adopt-a-Forest Program is an Osaka Prefecture initiative that acts as an intermediary between businesses and forest owners to facilitate forest creation activities.Its purpose is to convert neglected plantations, bamboo forests, and other degraded forests into broadleaf forests through the participation of businesses and other entities, thereby contributing to global warming prevention and the preservation of biodiversity.