At least two of them moving rapidly through the branches of a tree. They did not mind me getting a bit closer as they were moving around the branches getting food. I also took a blurry shot of one of them hovering just off the branch before it quickly darted in to get some food.
Many thanks for the suggestion ConBoekel. I agree that the striations are common with the Striated Thornbill but the white iris is what I was using to identify the bird as a Weebill, the thornbill's iris is dark. However, I have been wrong in the past :-)
I'm happy with Weebill, this particular individual just seems to have more striations than usual. A key giveaway is the pale eye (dark in Striated Thornbill).