Spotted pardalote- an interesting little visitor to my garden

While doing my latest garden, I was lucky to have many visitors. Investigating just who the little fellas are I realised they have moved into my wall and dug a little nest.  The nest entry appears like a small round tunnel dug directly into a dirt wall.

Well I intend to be careful around the nest and let nature take its course.  Hopefully I will observe little babies soon.