This butterfly very busy with its laying. The cumquat bush is well protected amongst grasses, native lomandra and broad leaf paspalum seed heads overhanging.
The butterfly sways around the bush, alighting the briefest moment to deposit one barely visible egg each time.
Eggs hatch into tiny black and white caterpillars resembling bird droppings, a survival strategy. Later, they turn green-grey and look spiky. When they are disturbed they shoot a forked filament from their heads that resembles a snake's tongue. Not that I've ever seen that yet.
What type of butterflies visit your patio, verandah, yard, garden, park, balcony?
Orchard swallowtails are very versatile and can breed on almost any of the citrus plants. A small cumquat in a pot on your roof or balcony. Let me know how you go.