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 ZOSTEROPS  DORSALIS,   V ig .a n dH o r sf. 
 Grey-backed Zosterops. 
 Certhia ccerulescens, Lath.  Ind. Orn. Supp., p. xxxviii. 
 L ’Heorotaire lieu, Vieill.  Ois.  dor., tom. ii. p.  121. pi.  83? 
 Bluish-breasted Creeper, Shaw, Gen.  Zool., vol. viii. p.  244. 
 Ceerulean  Creeper, Lath. Gen. Syn. Supp., vol. ii. p.  188. 
 Ccerulean Honey-eater, Lath. Gen. Hist., vol. iv. p.  204. 
 Sylvia lateralis, Lath. Ind. Orn. Supp., p. lv. 
 Rusty-side Warbler, Lath. Gen.  Syn.  Supp., vol. ii. p.  250.—Shaw Gen.  Zool.,  vol.  x. p. 659.—Lath.  Gen.  Hist.,  
 vol. vii. p.  140. 
 Certhia diluta, Shaw, Gen.  Zool., vol. viii. p.  244. 
 Philedon cceruleus, Cuv. 
 Meliphaga coerulea, Steph. Cont.  of Shaw’s Gen.  Zool., vol.  xiv.  p.  264. 
 Sylvia annulosa, var. ß, Swains. Zool.  111.  1st Ser., pi.  16. 
 Zosterops dorsalis, Yig.  and Horsf.  in Linn. Trans., vol.  xv. p.  235. 
 White-eye, Colonists of New South Wales. 
 T h is   bird  is  stationary in all parts  of  Van Diemen’s Land,  New  South Wales  and  South Australia,  and  is  
 more numerous  than  any  other bird inhabiting  those  countries ;  where  it  is  not only  to be met with  in  the  
 forests and thickets,  but also in nearly every garden,, by the proprietors of which  it  is  regarded more as a pest  
 than,  as  one would suppose,  a welcome visitor ;  no  one o f the  birds of the country effecting greater damage  
 to  the  buds and fruits of every kind.  It  even  builds  its  nest and  rears  its  young in the shrubs  and  rose-trees  
 bordering the walks.  I  observed  several nests  in such situations  in  the garden  of the Government House at  
 New Norfolk, Van Diemen’s Land.  Among  the  trees  o f the forest  the  beautiful tea-tree (leptospermum ?) is  
 the one to which at all times this species evinces a great partiality.  Were it not for its destructive propensities,  
 the Grey-backed Zosterops must from its familiar disposition and pretty lively song be a very general favourite. 
 Its flight  is  quick and  darting,  and when among  the  branches  o f  the trees  it is  as active  as  most  birds,  
 prying and searching with  the most scrutinizing care into  the leaves and flowers  for  the insects, upon which  
 it feeds.  It is sometimes seen singly or in pairs, while  at others  it is  to be observed in  great numbers, on the  
 same  or neighbouring trees.  The southern  and  eastern portions  of Australia,  and  the  islands  adjacent,  are  
 its  true habitat ;  and  the two succeeding plates will show how beautifully it  is  represented by allied  species  in  
 other parts  of the country. 
 The breeding-season  commences in  September and continues  to January.  The nest is one o f the  neatest  
 structures  possible ;  it is  of  a  round  deep  cup-shaped form,  composed  of  fine grasses, moss  and wool,  and  
 most carefully lined with fibrous roots  and grasses.  The  eggs  are  usually three in number,  of  a  beautiful  
 uniform pale blue,  eight and a half lines long by six lines broad. 
 The sexes present no difference o f plumage. 
 On  examining  the  “ Collection  o f Australian  Drawings,”  formerly  belonging  to  the  late  A.  B.  Lambert, 
  Esq.,  and  now  in  the  possession  of  the  Earl  of Derby,  who  kindly forwarded  them  to  me for  the  
 purposes  of the present work,  I find that  this  species was  long since described by Latham,  under  the names  
 above quoted ;  in  neither  of  his  descriptions, however,  does  he  mention  the  white  ring  around  the  eye,  
 which forms  so  conspicuous  a feature in  the appearance of the bird, the want o f which would  have precluded  
 the  possibility of my believing them  to be  identical,  had  not  the  drawings  named  by Latham’s  own  hand  
 proved such  to  be  the  case :  the  species should therefore stand as Zosterops  ccerulescens,  although  Z. lateralis  
 would  certainly be more appropriate ;  unfortunately this fact did  not come  to my knowledge  until after  the  
 Plate had been named, and the requisite number of impressions struck off.  Latham refers to the 83rd Plate of  
 the  “ Oiseaux Dorées,”  as identical with  his  ccerulescens, but of this  as  I  have  indicated above I am doubtful. 
 Crown  of  the head, wings  and tail  olive ;  back dark grey,  eyes surrounded  by a  zone  of white feathers,  
 bounded in front and  below with black ;  throat,  centre of the abdomen,  and under tail-coverts greyish white  
 with  a  slight  tinge  of  olive ;  flanks  light  chestnut  brown ;  upper mandible  dark  brown,  under  mandible  
 lighter ;  irides  and feet greyish brown. 
 In  some specimens the throat and sides  of  the head are wax-yellow,  and  the flanks are only stained  with  
 chestnut brown. 
 The  Plate  represents  the  male,  female and nest of  the natural size,  on  a branch  of  the  tea-tree  of Van  
 Diemen’s Land.