After the main island of Krakatoa was obliterated in a volcanic eruption in 1883 , leaving a handful of smaller islands , the pink-necked pigeon was observed on the first bird survey of these remnants . The survey was conducted in 1908 , and at the time the pigeon was the only obligate frugivore ( meaning it ate mostly fruit , as opposed to as part of a wider diet or opportunistically ) that had established itself on the islands . Within the archipelago it was able to colonise Anak Krakatau , a volcano that emerged from the sea from the caldera in 1927 , within 36 years of the new island suffering a large eruption in 1952 . The delay between the island settling down and colonisation was likely due to the time taken for figs to become established on the island and begin fruiting . It later became extinct on that island , due to a small population and predation . The species has recently expanded its range , having colonised Flores at some time since 2000
volcanic eruption in 1883
1883 eruption of Krakatoa
Pink-necked green pigeon