Sunbirds nesting in our verandah (cleaning the nest)

We’ve had a couple of sunbirds nesting in our verandah at Portland Roads Beach Shack. They build a nest hanging off a piece of string in about 2 weeks, then have the babies.

We have been watching them and noticed that they seem to take the babies shit (neatly wrapped in a little white bundle) out of the nest, fly away with it drop it off somewhere.