﻿536 
  Mr. 
  H. 
  O. 
  Forbes 
  on 
  the 
  Birds 
  

  

  bar, 
  and 
  I 
  have 
  re-examined 
  these 
  specimens 
  and 
  have 
  found 
  

   this 
  to 
  be 
  so. 
  I 
  therefore 
  believe 
  that 
  the 
  alar 
  bar 
  appears 
  

   after, 
  perhaps, 
  the 
  first 
  year, 
  and 
  that 
  only 
  after 
  several 
  

   further 
  monltings 
  does 
  the 
  dorsal 
  patch 
  present 
  itself, 
  in- 
  

   creasing 
  in 
  extent 
  with 
  the 
  greater 
  maturity 
  of 
  the 
  bird. 
  

   The 
  dorsal 
  patch 
  does 
  not 
  occnr 
  in 
  its 
  greater 
  extent 
  in 
  

   P. 
  rothschildi 
  till 
  after 
  the 
  bird 
  is 
  fully 
  adult 
  and 
  after 
  it 
  has 
  

   even 
  bred. 
  In 
  two 
  s])eciraens 
  of 
  this 
  species, 
  both 
  in 
  beautiful 
  

   feathering, 
  with 
  distinct 
  not 
  antrorsal 
  crests 
  (one 
  more 
  marked 
  

   than 
  the 
  other) 
  and 
  in 
  breeding 
  plumage, 
  which 
  have 
  been 
  sent 
  

   to 
  me 
  along 
  with 
  the 
  eggs, 
  the 
  dorsal 
  spot 
  is 
  small 
  and 
  not 
  well 
  

   developed 
  ; 
  in 
  another, 
  obtained 
  by 
  Von 
  Hiigel 
  at 
  the 
  Bluff, 
  

   in 
  the 
  South 
  Island 
  of 
  New 
  Zealand, 
  it 
  is 
  more 
  developed 
  ; 
  

   while 
  in 
  a 
  fourth 
  (from 
  the 
  Chatham 
  Islands) 
  it 
  is 
  still 
  

   larger, 
  and 
  is 
  accompanied 
  by 
  two 
  scapular 
  patches 
  of 
  white, 
  

   very 
  similar 
  to 
  those 
  described 
  by 
  Sir 
  Walter 
  Buller 
  as 
  

   occurring 
  in 
  P. 
  carunculatits 
  from 
  New 
  Zealand, 
  In 
  two 
  

   other 
  immature 
  specimens 
  from 
  the 
  Bluff, 
  from 
  the 
  col- 
  

   lection 
  of 
  Von 
  Hiigel, 
  this 
  spot 
  is 
  wanting. 
  In 
  all 
  these 
  

   specimens 
  the 
  alar 
  bar 
  is 
  present. 
  Out 
  of 
  four 
  specimens 
  

   of 
  P. 
  imperialis 
  in 
  the 
  British 
  Museum 
  (three 
  young 
  and 
  

   one 
  old), 
  all 
  of 
  them 
  have 
  the 
  alar 
  bar 
  and 
  only 
  the 
  mature 
  

   one 
  the 
  dorsal 
  spot, 
  

  

  There 
  can 
  be 
  little 
  doubt 
  but 
  that 
  almost 
  all 
  Cormorants 
  

   assume 
  a 
  more 
  ornamental 
  plumage 
  during 
  the 
  breeding- 
  

   season, 
  and 
  the 
  crest 
  is, 
  I 
  believe 
  it 
  will 
  be 
  found, 
  one 
  of 
  

   those 
  adornments 
  that 
  appear 
  during 
  that 
  season. 
  Mr. 
  Haw- 
  

   kins 
  writes 
  me 
  in 
  reference 
  to 
  the 
  species 
  now 
  under 
  dis- 
  

   cussion 
  : 
  " 
  When 
  they 
  pair 
  off 
  for 
  breeding 
  both 
  the 
  males 
  

   and 
  the 
  females 
  get 
  crests, 
  and 
  as 
  soon 
  as 
  the 
  young 
  can 
  

   leave 
  the 
  nest 
  the 
  parents 
  lose 
  their 
  crests 
  and 
  become 
  i^lain 
  

   and 
  quite 
  ugly. 
  The 
  male 
  and 
  female 
  take 
  turn 
  about 
  at 
  

   hatching. 
  W 
  hen 
  making 
  their 
  nests 
  they 
  don't 
  hesitate 
  to 
  

   rob 
  another 
  nest 
  if 
  the 
  owners 
  are 
  away 
  from 
  home."' 
  The 
  

   examples 
  of 
  P. 
  imperialis 
  from 
  the 
  Magellan 
  region 
  have 
  

   no 
  distinct 
  crest 
  either 
  in 
  the 
  specimen 
  in 
  the 
  British 
  

   Museum 
  or 
  in 
  that 
  figured 
  by 
  Mr. 
  Sclater 
  ; 
  but 
  their 
  coronal 
  

   feathers 
  are 
  slightly 
  elongated 
  and 
  are 
  r/reen, 
  whereas 
  in 
  the 
  

  

  