The view from outer space (courtesy of Google Earth) shows the guano on Lawrence Rocks. You can also just make out a tiny spot more on Point Danger, the nearest point on the mainland. The cloacas at work belong to these …

The colony on the rocks spilled over onto Point Danger, the only mainland breeding colony of Australasian Gannets. It’s survival has been greatly assisted by fencing that keeps out foxes and other terrestrial predators.
The rocks also provide a resting place for Black-faced Cormorants and Australian Fur Seals. In winter the White-fronted Terns can usually be seen here. Crested Terns are common all year.