﻿49G 
  Mr, 
  John 
  Whitehead 
  on 
  the 
  

  

  had 
  its 
  coloration 
  influenced 
  by 
  climate 
  (probably 
  by 
  greater 
  

   rainfall), 
  and 
  shows 
  a 
  decided 
  tendency 
  to 
  increase 
  the 
  bright- 
  

   ness 
  of 
  the 
  green 
  upper 
  parts, 
  and 
  to 
  lose 
  the 
  yellows 
  of 
  the 
  

   head 
  and 
  underparts, 
  which 
  have 
  now 
  attained 
  a 
  decided 
  

   green 
  gloss. 
  On 
  the 
  other 
  hand, 
  specimens 
  from 
  Eastern 
  

   India 
  are 
  often 
  of 
  a 
  decided 
  yellowish 
  tinge 
  on 
  the 
  upper 
  

   part 
  of 
  the 
  back. 
  

  

  The 
  same 
  causes 
  joined 
  to 
  more 
  perfect 
  isolation 
  have 
  

   probably 
  brought 
  about 
  the 
  differences 
  between 
  Pitta 
  cyano- 
  

   ptera 
  and 
  P. 
  nympha. 
  

  

  5. 
  Pitta 
  angolensis. 
  

  

  The 
  young 
  are 
  : 
  above 
  dull 
  brownish 
  green, 
  throat 
  pinkish 
  

   white, 
  belly 
  pale 
  scarlet, 
  while 
  the 
  terminations 
  of 
  the 
  

   wing-coverts 
  are 
  not 
  so 
  large 
  nor 
  so 
  vividly 
  blue 
  as 
  in 
  the 
  

   adult. 
  

  

  The 
  nearest 
  geographical 
  ally 
  of 
  this 
  interesting 
  species 
  is 
  

   Pitta 
  brachyura, 
  which 
  species 
  P. 
  angolensis 
  most 
  nearly 
  

   resembles. 
  The 
  scarlet 
  of 
  the 
  underparts 
  is 
  more 
  developed 
  

   than 
  in 
  any 
  species 
  of 
  this 
  group 
  of 
  Pittas, 
  the 
  chin 
  and 
  

   throat 
  being 
  also 
  suffused 
  with 
  the 
  same 
  colour 
  ; 
  the 
  wing- 
  

   and 
  rump- 
  adornments 
  are 
  also 
  highly 
  developed, 
  the 
  climate 
  

   of 
  West 
  Africa 
  having 
  agreed 
  with 
  the 
  descendants 
  of 
  what 
  at 
  

   some 
  distant 
  period 
  was 
  in 
  all 
  probability 
  an 
  emigrant 
  flock 
  

   of 
  P. 
  hrachyura. 
  

  

  6. 
  Pitta 
  vigorsi. 
  

  

  Pitta 
  vigorsi, 
  Sol. 
  op. 
  cit. 
  p. 
  426. 
  

  

  To 
  the 
  localities 
  of 
  Banda 
  and 
  Tiraor-laut, 
  the 
  Island 
  of 
  

   Dammar 
  may 
  be 
  added. 
  " 
  Bill 
  black 
  ; 
  iris 
  dark 
  brown 
  ; 
  feet 
  

   pale 
  yellowish 
  horn-colour^^ 
  [Wallace). 
  

  

  7. 
  Pitta 
  concinna. 
  

  

  Pitta 
  concinna, 
  Scl. 
  op. 
  cit. 
  p. 
  426. 
  

  

  The 
  young 
  are 
  brown 
  on 
  the 
  breast, 
  they 
  have 
  the 
  flanks 
  

   brownish 
  buff" 
  and 
  show 
  a 
  pale 
  pink 
  median 
  patch 
  ; 
  the 
  back 
  is 
  

   duller 
  brownish 
  green 
  ; 
  the 
  shoulder-patch 
  and 
  rump-band 
  

   are 
  smaller 
  and 
  less 
  bright 
  in 
  colour. 
  " 
  Bill 
  black 
  ; 
  iris 
  dark 
  

   brown; 
  feet 
  pale 
  yellowish 
  horn-colour 
  •" 
  [Wallace). 
  

  

  