Black-eared Miner

Manorina melanotis is a medium-sized honeyeater endemic to Australia, distinguished from its close relative the Yellow-throated Miner by darker ear-coverts and richer olive-grey plumage. Like other miners, it is a highly social, cooperatively breeding bird, living in colonies where related individuals assist in feeding and defending young. It feeds on nectar, invertebrates, and lerp (a sugary secretion produced by psyllid insects), making it an active participant in pollination and insect population control within its habitat.

The species is restricted to mallee woodland, a semi-arid eucalypt shrub-forest ecosystem, primarily across the Murray-Darling Basin region spanning parts of South Australia, Victoria, and New South Wales. It depends on large, structurally complex tracts of old-growth mallee with abundant hollow-bearing trees for nesting.

Its decline stems from historic and ongoing clearance of mallee for livestock grazing and cropping, which has fragmented remaining habitat into small, isolated patches. Fire, both uncontrolled bushfires and fire suppression practices that alter vegetation structure, further degrades habitat quality. Recurrent drought conditions reduce food availability and breeding success.

Hybridization with the more common Yellow-throated Miner in disturbed or fragmented habitat edges also threatens the genetic integrity of remaining populations.

Conservation efforts include habitat protection within mallee reserves, translocations of birds to bolster isolated colonies, and monitoring programs tracking population size and hybridization rates. Prescribed burning regimes are being adjusted in some regions to better mimic natural fire cycles beneficial to mallee regeneration.

Population trends remain downward, with the species confined to a fragmented range and vulnerable to ongoing habitat loss and climatic extremes. Long-term persistence depends on maintaining and expanding large, connected mallee tracts.