The taxonomic misnomer was noticed long before genetic studies confirmed the true place of MacGregor's bird-of-paradise. It was noted that the species is consistently monogamous – something very unusual in the Paradiseaidae. It is also highly faithful to roosting and feeding sites, returning day after day although it has never been seen to defend its territory (6). It appears to be partially nomadic as its reproductive cycle is dependent on the unpredictable fruiting of the podocarp Dacrycarpus compactus, upon which it feeds. However, this species may also feed on other fruits in low bushes and on the ground, and will look for arthropods amongst vegetation (5). It is most commonly sighted between 3,200 and 3,500 metres above sea level (5), perched in the open or on the forest edge (2).