The Varied Sittella, Neositta chrysoptera, is one of two members of the family Neosittidae. It lives in New Guinea and the eastern portion of Australia. It has quite a few subspecies.
Classification:
Order: Passeriformes
Family: Neosittidae
Genus: Neositta
Species: N. chrysoptera
Photos:
Varied Sittella (Neositta chrysoptera)

"Varied Sittella (Neositta chrysoptera). Callum Brae Nature Reserve, Canberra, ACT, Australia."
Photo courtesy of kookr
Sittella nest

"A close up of the nest and another bird working on it."
Photo courtesy of aaardvaark
Orange-winged Sittella

"Proper name "Varied Sittella"; race "Orange-winged". At Callum Brae bush reserve."
Photo courtesy of aaardvaark
Varied Sittella

"Seen at Wallagoot. Another new species to me. I was amazed how he vigorously tapped the wood like a wood pecker."
Photo courtesy of MaxinAus
Video:
Unfortunately, I have not been able to find any video of this species to share here. If you know of one, please leave a comment with a link.
Commentary:
croajingolong national park and mallacoota (vic)
the bush along here usually contains scarlet robin, jacky winter, mistletoebird, varied sittella, striated pardalote, spotted pardalote, rufous and golden whistler, olive-backed oriole, white-winged chough, yellow-tailed and … Read more…
Ben Cruachan - natural history » Blog Archive » I and the Bird (s …
One bird we always love to see out in the bush is the Varied Sittella, working its way headfirst down the trunks and branches in search of insects. Nuthatches are the equivalent bird in John’s territory, let’s tag along for a look while … Read more…
the best sighting however was a single varied sittella, which gave us great views as it worked down the trunk of a white stringybark, before checking out a long horizontal branch, giving us glimpses of the orange on the wing. … Read more…
myall lakes np (28th-29th january ‘06)
the expected groups of silvereyes were present as well as white-throated treecreepers, kookaburras and the odd sacred kingfisher and remarkably, a new one for me - the varied sittella #241. not many raptors - whistling kites and … Read more…