Well, it looks like 3 of the 4 have now hatched... But the first two are getting so big (born 5 & 6 days ago respectively) it is hard to see the newest arrival. Once the last egg hatches, it will be interesting to see how nature unfolds.
It's very interesting, I never imagined that they would hatch so many days apart, I imagined that they would all hatch over 24 hours like when my hens sit on eggs. A great image - you are doing well documenting this. In NZ there is a lovely book written and photographed by Meg Lipscombe about a tui and her young.
@888rachel thanks Rachel. The parents are usually nearby but the first and second born are getting so big there isn't much room in the best for any lengthy stay.
Adorable capture!