Shoalhaven Heads 150 km south of Sydney is a good place to see shorebirds and waders. It is one of the key NSW sites for migratory birds over the summer. 

At this time of the year, late May, it is reasonably quiet. When I visited last week there were Black Swans, Grey and Chestnut Teal, Red-capped Plover, Sooty Oystercatchers, Masked Lapwings and a White-faced Heron on the mudflats. Two White-bellied Sea-Eagles appeared, one carrying what appeared to be a hapless Australian Raven while two further Ravens attacked. They flew low over the sand hills before disappearing on the town side of the river. 

The mouth of the Shoalhaven River is often blocked by sand and you can walk across to Comerong Island Nature Reserve, which lists over 150 bird species. While walking at the high tide mark I disturbed a Buff-banded Rail. It flustered off then peered back through the tussock. There were Yellow and Brown Thornbills, Brown Gerygones, Silvereyes and a Bandicoot quite happy to dig its holes along the path ahead, oblivious to my presence.