In a narrative of the voyage published under the title _Journaal wegens een Voyagie na het onbekende Zuid-land_, we read that on the 11th of January nine or ten Black Swans were seen. In a letter from Willem van Oudhoorn, Governor-General of the Dutch East Indies, to the Managers of the East India Company at the Amsterdam Chamber, it is stated that three black swans were brought alive to Batavia, but died soon after their arrival.[7] Several boat expeditions were made, and Swan River was entered and ascended. During these expeditions the author of the _Journaal_ mentions that the song of the 'Nachtegael' was heard. There are no nightingales in Australia, but the bird to which the writer of the _Journaal_ alludes may have been the Long-billed Reed Warbler, the Australian representative of the Sedge Warbler and a denizen of the reed-beds of the Swan River. Two species of geese are also mentioned by the same writer under the names of European geese. It is somewhat difficult to determine to which geese the author of the _Journaal_ alludes under the names 'Kropgans' and 'Rotgans.' When English-speaking Dutch are asked to translate 'kropgans,' they do so by 'Christmas goose' or 'fat goose.' Dictionaries are silent respecting 'kropgans,' or render it by 'pelican.' I am inclined to think that this rendering arises from a confusion between 'kropgans' and the German word 'kropfgans,' and that 'kropgans' was formerly applied to domestic geese in general which were being fed for the market, and also, as in the present instance, to the wild goose from which they were derived, namely to the Grey Lag Goose (_Anser ferus_). If this be so, the Australian bird with which the kropgans is compared in the _Journaal_ may be the Cape Barren Goose (_Cereopsis novae-hollandiae_), which is found sparingly in Western Australia. The 'Rotgans' is the Brent Goose (_Branta bernicla_) and the Australian bird which most resembles it is the Musk Duck (_Biziura lobata_), which also is found in the west of Australia, although more sparingly there than in the south of the island continent. Other birds which were seen at the same part of the Australian coast were 'Duikers,' by which name Cormorants are probably designated, Cockatoos and Parrakeets. It is said that all the birds were shy and flew away at the approach of human beings. No aborigines were seen, although smoke was visible. On the 15th of January De Vlaming quitted the anchorage near Rottnest Island, and followed the coast until 30 deg. 17' S. lat. was reached. Two boats were there sent to the shore and soundings were taken. The country near the landing-place was sandy and treeless, and neither human beings nor fresh water were to be seen. But footmarks resembling those of a dog were seen, and also a bird which the _Journaal_ calls a 'Kasuaris' and which must have been one of the Emus.[8]