19 1 7'] Dirk Hartog Island and Peron Peninsula. 589 



An Acanthiza, species not determined, was fairly common 

 in the Peron peninsula scrubs. To me it appeared to be 

 A. urojjygialis, but as no skins of the series obtained have 

 yet reached England, notes on them must be deferred for 

 the second paper. 



Sericornis maculatiis hartogi Carter, Bull. B. O. C. 

 xxxvii. 1916, p. 6. 



This new Scrub- Wren was the commonest bird on Dirk 

 Hartog Island. Almost every bush of any size seemed to 

 hold one or two, and on very windy days (which often 

 occur in the summer months), when small birds keep in the 

 shelter of the scrub, one has only to sit down under a bush, 

 squeak with one's lips, and one, or a pair of this species, 

 will almost invariably appear at once. Tliey are excessively 

 tame, and will hop about among the twigs within a foot 

 of one's face, often uttering a scolding note like "tchut, 

 tchut." At other times they have what appears to be an 

 alarm-note like '' pce-wee-wee." 



What seems to be their song is a musical trilling, 

 resembling that of the British Grasshopper-Warbler. 



Many fledged young were seen after the end of September. 



Scrub-Wrens also occurred on the Peron peninsula, but 

 were not nearly so plentiful as on Dirk Hartog Island. 

 Their habits and notes were the same. 



No Scrub-Wrens have ever ])een observed by the writer in 

 the Gascoyne district or further north. 



Hallornis cyanotiis. (Plate X.) 



Malurus leucopterus (nee Dumont), Gonld, Bds. Australia, 

 iii. pi. 25 ; id. Handb. Birds Austr. i. 1865, p. 330. 



Malurus cyanotus Gould, Handb. Birds Austr. i. 1865, 

 p. 331. 



Malurus leuconotus Gould, P. Z. S. 1865, p. 198; id. 

 Ilandb. Birds Austr. i. 1865, p. 332; id. Birds Austr. 

 folio, Suppl., pi. 24. 



As the original Malurus leucopterus, which was discovered 

 on Dirk Hartog Island by the French expedition in the year 



