704 M r. T. Carter on some [Ibis, 



Green-headed Teal at tlieso mangroves, and lias obtained 

 their nests and en;o-s. The nests are usually in the scrub 

 and herbage around the niiingrove swamp. 



Virago gibberifrons rogersi. 



Some immature Western Teal were shot at a pool (fresh- 

 water) twenty-five miles up the Gascoyne River on 14 Sep- 

 tember, 1913. A few were observed at Lnke Muir in 

 January lOlf), l)at no s[)ecimens could be obtained, and 

 others, with smull young, were seen at a freshwater pool 

 near the Minilya lliver on 10 September, 191(). 



Stictonetta nsevosa. 



Sonu^ FiX'ckled Dneks were shot on 14 September, 1913, 

 on a pool in tlie Gascoyne River. 



Nyroca australis. 



On two occasions in May 1919 I saw a single White-eyed 

 Duck swimming in the pools in (.j)ueen's Gardens, Pertb, in 

 company with hundreds of Black Ducks, as previously 

 mentioned, Init it was very shy and would not come near 

 the banks. 



Biziura lobata. 



Musk- Ducks were connnon on all the lakes and swamps 

 visited in the south-west area. In January 191H immature 

 birds of various sizes were noted in the freshwater swamp 

 at Lake Muir, When I was sitting by the edge of one of 

 these swamps, well concealed amongst some paper-biirk scrub, 

 I was one day able to watch an old drake " displaying " on 

 the water. Its head was thi-own well back, and its tail 

 slowly spread upwards over its back; then by simidtaneous 

 movements the head was thrust forwards to the water, but 

 appai'ently not under it, the widespread tail was jerked 

 down to the water behind, and each foot thrust out sideways 

 with outs[)read webs, just on the water surface, the result 

 being a very resonant " plonk '^ ; but what act^ually produced 

 this noise it was impossible to decide — whether it was vocal 

 or caused bv tail and feet meeting the water. 



