﻿Birds 
  in 
  the 
  Norwich 
  Museum. 
  345 
  

  

  in 
  its 
  crest 
  and 
  throat, 
  but 
  only 
  tlie 
  type 
  is 
  at 
  present 
  known. 
  

   It 
  is 
  scarcely 
  probable 
  that 
  such 
  a 
  very 
  distinct 
  genus 
  as 
  

   Machaerirhamphus 
  {Siringonyx) 
  should 
  consist 
  of 
  only 
  two 
  

   species, 
  and 
  those 
  two 
  found 
  in 
  different 
  parts 
  of 
  tlic 
  

   world. 
  

  

  The 
  Museum 
  requires 
  Melierax 
  mechowi, 
  Cabanis, 
  if 
  it 
  is 
  

   distinct. 
  My 
  father 
  includes 
  it 
  in 
  his 
  ' 
  List 
  ' 
  with 
  a 
  query, 
  

   and 
  a 
  star 
  indicating 
  that 
  he 
  had 
  not 
  seen 
  it. 
  In 
  a 
  MS. 
  note 
  

   he 
  adds 
  : 
  — 
  " 
  ]Mr. 
  Sharpe 
  thinks 
  not 
  distinct 
  from 
  M. 
  poly- 
  

   zonus 
  (Journ. 
  Linn. 
  Soc, 
  Zool. 
  xvii. 
  p. 
  437), 
  but 
  see 
  as 
  to 
  

   its 
  distinctness 
  Bocage, 
  J. 
  Sci. 
  Lisboa, 
  xxxiv. 
  pp. 
  65, 
  (i7J' 
  

   Dr. 
  Sharpe's 
  remark 
  is 
  that 
  in 
  twelve 
  examples 
  in 
  the 
  British 
  

   Museum 
  " 
  every 
  gradation 
  between 
  a 
  uniform 
  and 
  a 
  closely- 
  

   barred 
  wing 
  can 
  be 
  found." 
  

  

  The 
  other 
  species 
  of 
  Melierax 
  — 
  M. 
  canorus, 
  M. 
  polyzonus, 
  

   M. 
  gabar, 
  and 
  M. 
  niger 
  — 
  arc 
  largely 
  represented 
  in 
  the 
  

   Museum 
  by 
  specimens 
  from 
  Ayres 
  and 
  other 
  African 
  collec- 
  

   tors, 
  and 
  of 
  M. 
  canorus 
  { 
  = 
  M. 
  musicus 
  (Daiulin)) 
  we 
  have 
  

   three 
  eggs 
  taken 
  by 
  Lucas 
  at 
  Rustenburg 
  in 
  the 
  Transvaal. 
  

  

  As 
  supplementary 
  to 
  his 
  remarks 
  on 
  the 
  colour 
  of 
  the 
  eye 
  

   in 
  Melierax 
  {cf. 
  Ibis, 
  1875, 
  p. 
  235), 
  my 
  father 
  records 
  

   (MS. 
  notes) 
  that 
  in 
  July 
  1884 
  an 
  adult 
  M. 
  musicus 
  at 
  the 
  

   Zoological 
  Societj^'s 
  Gardens 
  had 
  '' 
  dull 
  cherry 
  iridcs,'Hhat 
  two 
  

   years 
  later 
  they 
  were 
  " 
  reddish 
  orange," 
  and 
  that 
  an 
  adult 
  

   M. 
  poly 
  zonus 
  at 
  the 
  Gardens 
  had 
  the 
  irides 
  of 
  " 
  a 
  rich 
  but 
  

   not 
  dark 
  hazel." 
  

  

  Accipiter 
  buettikoferi 
  has 
  been 
  described 
  by 
  l)r. 
  Sharpe 
  

   from 
  three 
  adult 
  Sparrow-Hawks 
  obtained 
  in 
  Liberia, 
  on 
  

   the 
  coast 
  of 
  Guinea, 
  assigned 
  at 
  first 
  to 
  A. 
  hartlaabi, 
  from 
  

   which 
  they 
  diff'cr 
  in 
  not 
  having 
  white 
  marks 
  on 
  the 
  centre 
  

   tail-feathers 
  and 
  in 
  having 
  the 
  thighs 
  grey. 
  Subsequently 
  

   two 
  others 
  presented 
  the 
  same 
  coloration 
  (Biittikofer, 
  Notes 
  

   Leyden 
  Mus. 
  xi. 
  p. 
  115, 
  1889). 
  It 
  does 
  not 
  appear 
  that 
  

   the 
  Norwich 
  Museum 
  has 
  got 
  A. 
  buettikoferi, 
  but 
  it 
  has 
  two 
  

   adults 
  of 
  A. 
  hartlaubi 
  (from 
  Bissao 
  and 
  Gaboon) 
  which 
  have 
  

   grey 
  thighs, 
  and 
  their 
  tails 
  when 
  spread 
  show 
  some 
  white 
  

   spots. 
  Nearly 
  allied 
  to 
  Accipiter 
  hartlaubi 
  (as 
  to 
  the 
  possible 
  

   identitv 
  of 
  which 
  with 
  A. 
  niinullus 
  mv 
  father 
  refers 
  to 
  

  

  