スミソニアン博物館のインスタグラム(smithsonian) - 1月6日 02時30分

The Guam rail went extinct in the wild largely due to the invasive brown tree snake introduced to the island by humans.
In 1984, the last 21 Guam rails were captured to start a breeding and recovery program in human care. The Smithsonian Conservation Biology Institute (part of @スミソニアン国立動物園) received the first Guam rails to be transferred for the program the next year.
All of the Guam rail chicks born here are candidates for release to the wild. They have been released on Rota and Cocos Island, which are both free of brown tree snakes.
Last year two birds born at SCBI were released back to the wild, along with 47 birds born in other programs. It marked the first time in 32 years that there were more Guam rails living in the wild than in human care. Now there are approximately 200 Guam rails in the wild and 116 living in human care. #NationalBirdDay #WeSaveSpecies #YearoftheBird #BirdYourWorld

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