The Brown tree snake -LRB- Boiga irregularis -RRB- is an arboreal colubrid snake native to eastern and northern coastal LOCATION@1 , LOCATION@2 , and a large number of islands in northwestern LOCATION@3 .

The Brown tree snake -LRB- Boiga irregularis -RRB- is an arboreal colubrid snake the lives in parts of coastal LOCATION@1 , LOCATION@2 , and islands in northwestern LOCATION@3 .
