With fewer than 300 individuals remaining in the wild, the critically endangered Regent Honeyeater is fighting for survival – and dedicated conservation efforts at Adelaide Zoo are helping turn the tide.

As part of a national captive breeding and release program, Adelaide Zoo continues to play a vital role in securing the future of this iconic species. Each breeding season, a small but mighty group of Regent Honeyeaters are carefully matched and managed, contributing to a growing population that is giving conservationists renewed hope.

This season, five chicks have successfully fledged at Adelaide Zoo, marking another positive step forward for the species. Adelaide Zoo typically manages five breeding pairs each season, with three pairs housed behind the scenes in specialised breeding facilities, and two pairs visible to visitors within the habitat.

Following the end of the breeding season, as the birds enter their annual moult, they have now transitioned into single-sex groups. Visitors can still catch a glimpse of these striking black-and-yellow birds in the Botanic Aviary near the Giant Tortoise habitat.

Team Supervisor Birds and Free Flight, Erin Kasteliz, said the Regent Honeyeater is as fascinating as it is rare.

“The Regent Honeyeater is a beautiful, fast-moving bird with some really unique features, including a specialised tongue that helps it feed on nectar,” she said.

“Their tongue has a brush-like tip, which you can sometimes spot flicking in and out as they feed from flowers. It’s perfectly adapted to their role as pollinators in the wild.”

Primarily nectar feeders, Regent Honeyeaters rely on flowering native plants such as grevillea and bottlebrush. At Adelaide Zoo, keepers replicate these natural conditions to encourage breeding behaviours, providing fresh flowering branches throughout the season.

In the wild, these birds are known to follow flowering events across the landscape, timing their breeding with peaks in nectar availability. Recreating this environment in a zoo setting is key to successful breeding outcomes.

“They’ll follow the flowering cycles in the wild, so during breeding season we provide species like Grevillea and Bottlebrush to really encourage those natural behaviours,” Erin said.

Their nests are delicate, cup-shaped structures made from eucalypt bark, dried grasses and plant fibres, all bound together with spider webs and lined with fine grasses. Females typically lay two to three speckled, reddish eggs, with males remaining close by as both parents share feeding duties once the chicks hatch.

To support chick development, keepers supplement the birds’ diet with small insects, ensuring the young grow strong and healthy.

“All of our breeding is carefully managed as part of a national program, where species coordinators guide which pairs should breed to ensure a healthy and genetically diverse population,” Erin said.

This collaborative approach has already delivered strong results, with 15 chicks bred at Adelaide Zoo last season alone, some of which have since been released into protected habitats in New South Wales.

Visitors are encouraged to come and see the Regent Honeyeaters in person and learn more about the Zoo’s conservation work, with the birds currently on display in the Botanic Aviary.

By visiting Adelaide Zoo, guests are directly supporting vital conservation programs helping secure a future for species on the edge of extinction.