Ternate, North Moluccas.
Has been thought to be close to A. hirundinaceus, A. terraereginae, A. mearnsi and A. spodiopygius. Previously placed in a composite species A. francicus or, alternatively, in A. vanikorensis; considered conspecific with A. spodiopygius by some authors. Recently proposed that each taxon in present species could be treated as a full species, since differences not clinal (ceramensis has conspicuous white rumpband, sororum a narrower, greyer-white rumpband, and infuscatus a dark grey, inconspicous rumpband; moreover, ceramensis and infuscatus are geographically closer to each other than either is to sororum), and apparently wandering ceramensis have been seen within the range of infuscatus, suggesting that the taxa may meet without interbreeding#R. Vagrancy by one taxon within the range of the other is not, however, the same as sympatry, and the break-up of this species into three, while certainly plausible, at least requires fuller evaluation of specimen evidence and, preferably, further information on vocalizations and nest structure. Three subspecies recognized.
Also recorded in Sula Is (Taliabu), race unknown.
Food and feeding
Status and conservation
Only subscribers are able to see the bibliography. Login or Subscribe to get access to a lot of extra features!