Introductions
The Java Sparrow was introduced in the Indian subcontinent, but it failed to become a successful resident on the Indian mainland although it has established a breeding population around Colombo, Sri Lanka. In the United States there a breeding population on several of the Hawaiian Islands, especially Oahu.
In the Caribbean, the Java Sparrow was introduced to Puerto Rico where it is fairly common near San Juan. It has also been sighted in Jamaica, but is not known to occur on any of the other islands.
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