Bird of the Month – Weebill
Posted on 22 July, 2025 by Bonnie Humphreys
Written by Damian Kelly and Jane Rusden
In the local Box-Ironbark forest it’s fairly rare to go for a walk without hearing the Weebill. Although seeing it can be tricky, as typically they are in constant motion as they forage in amongst foliage. A give away is their hover, similar species don’t exhibit this behaviour. The best interactions I’ve had with Weebills, is when I’ve been sitting quietly nature journaling in my sketchbook, and a flock moves through the scrub around me. In these instances they can come very close to you and no binoculars are required to get fantastic views of the tiny but sometimes bold bird.
Measuring from bill tip to tail at 80mm and weighing in at just 6 grams, the Weebill is Australia’s smallest bird, but not by far with the Brown Thornbill just 1 gram heavier on average. As its name implies the bill is also very small and and stumpy which makes it easy to distinguish in the field from other Thornbills that invariably have longer, pointy thorn-like bills. It has been placed in a different genus to the other Thornbills.
A glance at the distribution map for the Weebill shows that it is widespread throughout Australia apart from some inland deserts and tropical rain forest areas. Detailed banding studies have shown the Weebill is a sedentary species with little local movements. Recoveries of banded birds have shown the 99% were recorded less than 10km form original locations. And surprisingly for such a small bird, some recoveries have been of birds over 7 years old.
Food is mostly insects of various kinds, although at times seeds are also taken. Breeding usually occurs August-December, although nesting has been observed at any time of the year when conditions are suitable. Nests are dome-shaped and are built mainly in eucalypt foliage. Clutch size ranges from 2-4 eggs. Both females and males incubate and feed the young.
Calls are quite loud for such a small bird with a whistled song that is quite distinctive and can sound like it’s calling its own name, “Weebill”.
Bird of the Month is a partnership between Connecting Country and BirdLife Castlemaine District. Each month we take a close look at one special local bird species. We are blessed to have the brilliant Jane Rusden and Damian Kelly from BirdLife Castlemaine District writing these! We’re excited to join forces to deliver you a different bird each month, seasonally adjusted, and welcome suggestions from the community.
Another informative profile and fantastic instructional photos. I hope that they are burnt into everyone’s retina for future identification.