It is typically solitary, and sometimes seen in pairs; it is believed to be territorial. However, on rare occasions, it has been seen in groups of up to 10.[2]
Taxonomy and systematics
Until 2016, both the purple-capped fruit dove and the Kosrae fruit dove were also considered as subspecies of the crimson-crowned fruit dove. The crimson-crowned fruit dove has two remaining sub-species:
P. p. porphyraceus - (Temminck, 1821): Found on Niue, Tonga and Fiji Islands