The Yellow-throated Miner, Manorina flavigula, also known as the White-rumped Miner, is a medium-sized, colonial honeyeater endemic to the vast landscapes of Australia. This bird is easily identified by its distinctive white rump, a feature that sets it apart from other miner species. With a plumage of grey tones and striking yellow throat markings, legs, and bare eye patches, it is a sight to behold in its natural habitat.
When observing the Yellow-throated Miner, look for the characteristic white rump, visible as the bird takes flight. This contrasts with the dark grey dorsal surface and medium grey feather patterning. The ventral side is a lighter grey to white with subtle scalloping on the chest. The bird's beak and skin patch around the eyes are a vivid yellow, and the legs share this yellow hue, though the intensity may vary. Juveniles display a fluffier, lighter grey chest without the scalloping seen in adults.
The Yellow-throated Miner thrives in open woodlands and scrublands, favoring arid and semi-arid regions but also found in temperate, subtropical, and tropical areas. It is commonly seen in acacia, eucalyptus, mallee, and casuarina environments. This adaptable species is also comfortable in disturbed habitats, such as regrowth and roadside vegetation.
This species boasts the most extensive range within the Manorina genus, inhabiting most of Australia except for the east of the Great Dividing Range, Cape York Peninsula, northeastern Northern Territory, and the driest central regions. It is divided into five subspecies, each with a distinct geographical distribution.
Yellow-throated Miners are social, noisy, and territorial. They live in groups and defend their resources vigorously against other avian species. Their behavior is akin to the closely related Noisy Miner, with shared postures and calls. These birds are less sedentary compared to other miners and may form larger groups during the non-breeding season.
The calls of the Yellow-throated Miner are higher pitched than those of the Noisy Miner but are unmistakably miner-like. They are vigilant birds, often the first to sound an alarm at the approach of a predator.
Breeding can occur throughout the year, with a peak from August to October. Nests are cup-shaped, woven from twigs and grasses, and lined with soft materials. Clutch sizes typically range from three to four eggs, with both parents and helpers contributing to feeding the young.
The Yellow-throated Miner can be confused with the Noisy Miner and the Black-eared Miner. However, the white rump and the amount of yellow on the throat and forehead are distinguishing features.
Their diet is varied, consisting of invertebrates, nectar, pollen, lerps, and seeds. They forage actively in small groups, probing flowers and gleaning leaves and bark for insects. They also catch insects mid-flight and forage on the ground.
The Yellow-throated Miner is currently listed as Least Concern on the IUCN Red List. However, hybridization with the endangered Black-eared Miner poses a significant threat to the latter's existence.
Hybridization with the Black-eared Miner is a conservation concern, as it threatens the genetic distinctiveness of the endangered species. The Yellow-throated Miner's expansion into disturbed habitats has led to increased contact and interbreeding with the Black-eared Miner.