
 
		m m  m im t 
 black;  breast  and  flanks  olive  brown;  centre  of  the  abdomen  and  under  
 tail-coverts,  buff ;  bill,  horn  colour ;  feet,  black. 
 Habitat,  Santa Cruz, Patagonia.  (April.) 
 I  am not aware of any difference in habits between  this  species,  and  the  following  
 (A.  niicroplerus) ;  and  the  country inhabited by  itis   similar.  From  these  
 circumstances  I  am  induced  to  suspect, that it  is the same  species  in  an immature  
 state. 
 3 .   A g r io r n i s   m ic r o p t e r u s .  Gould. 
 Plate X II. 
 31. pallidè brunneus, subtus Jlavescenti-albus ; alarum caudoeque plumis griseo-marginatis  
 ;  gutturis albis,  hrunneo-marginatis. 
 Long,  tot,  unc. j  aloe,  ;  caiuke,  2^ ;  tarsi,  I . ^  ;  rostri,  1|-. 
 Head,  all  the upper surface, wings  and  tail,  pale brown,  each  feather of the wings  
 and  tail  margined  with  greyish  brown ;  throat,  white,  striated  with  dark  
 brown ;  the  remainder  of  the  under  surface,  buffy  white ;  bill,  dark  horn  
 colour;  feet brown. 
 Habitat, Port Desire,  and St.  Julian,  Patagonia.  (January). 
 These birds  frequent  the  wild valleys  in  which  a  few  thickets  grow.  They  
 generally  take  their  stand  on  the upper  twigs.  They  are  shy,  solitary,  and  not  
 numerous.  Mr. G.  R.  Gray  considers  the  two  specimens which  were  obtained  
 to be immature,  and  that  one  is  a  full-fledged  young,  and  the other  a  nestling  
 of the Agr.  striatus. 
 4 .  A g r io r n i s   m a r i t im u s .  G.  R .  Gray. 
 P l . a t e   X I II. 
 Pqpoaza maritima, D'Orh.  et  Lefr., Mag. de Zool.  1837,  p.  65. 
 Agriornis leucurus.  Gould’s M S S .,  and on PI.  xiii. 
 Inhabits  the coast of Patagonia.  It  is a  scarce,  shy,  solitary  bird,  frequenting  
 the valleys  in which  thickets  grow,  but often  feeding  on  the  ground.  In  the  
 interior plains of Patagonia, on  the banks of the  Santa Cruz,  I  several  times  saw  it  
 chasing beetles  on  the wing,  in  a peculiar manner,  half  hopping and half  flying ;  
 when  thus  employed,  it  spreads  its  tail,  and  the wliite  feathers  in  it  are  displayed  
 in  a very  conspicuous manner.  I  also met with  this  species  in  the  lofty  and  arid  
 valleys  on  the  eastern  side  of  the  Cordillera  of  Central  Chile,  and  likewise  at  
 Copiap6.