﻿Letters, 
  Extracts, 
  Notices, 
  li§c. 
  469 
  

  

  I 
  find 
  that 
  the 
  localities 
  mentioned 
  in 
  ' 
  Argentine 
  Orni- 
  

   thology 
  ' 
  are 
  often 
  very 
  misleading, 
  such 
  as, 
  for 
  example, 
  

   " 
  Buenos 
  Aires." 
  I£ 
  this 
  means 
  the 
  province, 
  it 
  is 
  far 
  too 
  

   broad 
  ; 
  if 
  the 
  town, 
  it 
  should 
  be 
  so 
  stated, 
  and 
  also 
  whether 
  the 
  

   species 
  is 
  a 
  " 
  straggler," 
  a 
  " 
  regular 
  visitor," 
  or 
  a 
  '' 
  resident." 
  

   For 
  example, 
  A(/elceus 
  flavus, 
  Alectrurus 
  risorius, 
  and 
  a 
  great 
  

   many 
  other 
  species 
  are 
  absolutely 
  unknown 
  close 
  to 
  the 
  

   town 
  of 
  Buenos 
  Aires, 
  but 
  common 
  in 
  the 
  west 
  of 
  the 
  pro- 
  

   vince 
  of 
  the 
  same 
  name. 
  Again, 
  there 
  are 
  birds 
  that 
  pass 
  

   by 
  the 
  river 
  to 
  the 
  neighbourhood 
  of 
  Buenos 
  Aires 
  (town), 
  

   such 
  as 
  Tanagra 
  bonariensis, 
  which 
  are 
  only 
  known 
  there, 
  

   and 
  never 
  seen 
  further 
  south. 
  

  

  I 
  give 
  (see 
  p. 
  468) 
  a 
  short 
  list 
  of 
  a 
  few 
  of 
  the 
  commonest 
  

   migrants 
  which 
  pass 
  in 
  March 
  and 
  April, 
  according 
  to 
  my 
  

   observations, 
  and 
  their 
  resorts, 
  so 
  far 
  as 
  I 
  can 
  ascertain 
  them 
  

   from 
  '^ 
  Argentine 
  Ornithology.' 
  

  

  In 
  the 
  stream 
  of 
  migrants 
  which 
  arrived 
  here 
  on 
  March 
  5th 
  

   last, 
  passing 
  northwards, 
  were 
  some 
  four 
  hundred 
  individuals 
  

   of 
  the 
  following 
  species, 
  which 
  also 
  all 
  departed 
  together 
  : 
  — 
  

   Mimus 
  triurus, 
  Troglodytes 
  furvus, 
  Poospiza 
  torquata, 
  Cata- 
  

   menia 
  analis, 
  Ttenioptera 
  coronata, 
  Lichenops 
  perspicillatus 
  , 
  

   Elainea 
  albiceps, 
  Pyrocephalus 
  rubineus, 
  Myiarchus 
  ferox, 
  

   Tyrannus 
  melancholicus, 
  Milvulus 
  tyrannus, 
  PJiytotoma 
  rutila, 
  

   Synallaxis 
  albescens, 
  S. 
  hudsoni, 
  and 
  Coccyzus 
  melunocory- 
  

   phus. 
  

  

  I 
  am. 
  Sir, 
  

   Estancia 
  Sta. 
  Elena, 
  Media 
  Luna, 
  Yours 
  &c. 
  

  

  Soler-F. 
  C. 
  al 
  Pacifico, 
  A. 
  H. 
  Holland. 
  

  

  Argentine 
  Republic, 
  March 
  2oth, 
  1893. 
  

  

  Sir, 
  — 
  Among 
  some 
  bird-skins 
  obtained 
  several 
  years 
  ago 
  

   from 
  Formosa, 
  which 
  I 
  have 
  not 
  hitherto 
  been 
  able 
  to 
  

   examine 
  carefully, 
  I 
  find 
  a 
  Bulbul 
  which 
  appears 
  to 
  be 
  

   undescribed. 
  In 
  its 
  olive-yellow 
  wings 
  and 
  tail 
  it 
  much 
  

   resembles 
  Pycnonotus 
  sinensis 
  and 
  P. 
  hainanus, 
  but 
  differs 
  

   from 
  them 
  in 
  its 
  greyer 
  back 
  and 
  in 
  the 
  absence 
  of 
  yellow 
  

   streaks 
  both 
  on 
  back 
  and 
  lower 
  parts. 
  Its 
  head, 
  with 
  plain 
  

   black 
  cap, 
  black 
  moustache, 
  and 
  scarlet 
  spot 
  at 
  the 
  gape, 
  is 
  

  

  