Apostlebird

The Apostlebird is a medium-sized bird with predominantly slate-grey plumage, darker wings, and a long black tail. Its most striking features are piercing blue-grey eyes and a robust, slightly curved black bill. The bird's legs are also black, complementing its overall sleek appearance.

Both males and females share similar plumage, making them indistinguishable in the field. Juveniles closely resemble adults but may have slightly duller plumage and less vibrant eye colouration.

Apostlebirds are notably vocal, with a repertoire of harsh, grating calls. Their most common vocalisation is a loud, raspy 'cark-cark-cark' or 'kark-kark-kark', often given in chorus by the group. They also produce softer, chattering sounds during social interactions within the flock.

• Look for noisy groups foraging on the ground in open woodlands or near human settlements.
• Listen for their distinctive, harsh 'cark-cark-cark' calls, often revealing their presence.
• Observe their cooperative behaviours, especially during the breeding season.
• In Australia, check parks and farmlands near water sources, where they're commonly found.

Apostlebirds are omnivores, eating primarily insects, seeds, and small fruits. They forage extensively on the ground, using their strong bills to turn over soil and leaf litter in search of prey.

During certain seasons, they may also feed on nectar from flowering plants.

Apostlebirds have a unique cooperative breeding system, typically from August to January. Pairs form within the larger group, but multiple birds contribute to nest building and chick rearing.

The nest is a large, mud-cup structure usually placed in the fork of a tree, 3-15 meters above ground. Females lay 2-5 pale blue or greenish-white eggs with brown speckles.

Incubation lasts about 16-18 days, with multiple group members taking turns. Nestlings fledge after approximately 19-23 days but continue to be fed by the group for several weeks after leaving the nest.

Apostlebirds are highly social, typically found in boisterous groups of 6 to 20 individuals, which gave rise to their common name. They are often seen foraging on the ground, using their strong bills to probe for insects and seeds.

These birds are known for their cooperative breeding system, where multiple birds assist in raising young, showcasing their complex social structure.

While the Apostlebird is listed as Least Concern by the IUCN, localised threats include habitat loss due to land clearing and urbanisation.

Conservation efforts focus on preserving their woodland habitats and maintaining suitable corridors between populations to ensure genetic diversity.