﻿CONTRIBUTIONS 
  TO 
  PHILIPPINE 
  ORNITHOLOGY. 
  

  

  PAET 
  I.— 
  A 
  LIST 
  OF 
  THE 
  BIRDS 
  KNOWN 
  TO 
  INHABIT 
  THE 
  PHILIPPINE 
  

   AND 
  PALAWAN 
  ISLANDS, 
  SHOWING 
  THEIE 
  DISTRIBUTION 
  WITHIN 
  

   THE 
  LIMITS 
  OF 
  THE 
  TWO 
  GROUPS. 
  

  

  By 
  Dean 
  C. 
  Wokcester, 
  A, 
  B., 
  

  

  Assistant 
  Professor 
  of 
  Zoology, 
  University 
  of 
  Michigan, 
  

   and 
  

  

  Frank 
  S. 
  Bourns, 
  M. 
  D., 
  

  

  Ann 
  Arbor, 
  Michif/an. 
  

  

  INTRODUCTION. 
  

  

  In 
  1888, 
  wLile 
  identifying 
  the 
  birds 
  collected 
  by 
  ourselves 
  in 
  the 
  

   Philippines 
  during- 
  the 
  preceding 
  year, 
  Doctor 
  Bourns 
  and 
  myself 
  

   began 
  the 
  preparation 
  of 
  a 
  distribution 
  table 
  for 
  tbe 
  birds 
  of 
  the 
  group. 
  

   This 
  table 
  was 
  ready 
  for 
  publication 
  in 
  1890, 
  but 
  the 
  opportunity 
  of 
  

   visiting 
  tbe 
  islands 
  for 
  a 
  second 
  time 
  presented 
  itself, 
  and 
  it 
  seemed 
  

   best 
  to 
  us 
  to 
  withhold 
  the 
  list 
  until 
  we 
  could 
  make 
  it 
  more 
  complete. 
  

  

  Complications 
  in 
  the 
  affairs 
  of 
  the 
  Minnesota 
  Academy 
  of 
  Science, 
  

   resulting 
  from 
  the 
  financial 
  troubles 
  of 
  1893, 
  ljut 
  a 
  stop 
  to 
  work 
  on 
  our 
  

   collections 
  for 
  more 
  than 
  a 
  year 
  after 
  our 
  return, 
  and 
  before 
  the 
  identi- 
  

   fication 
  of 
  our 
  material 
  was 
  completed 
  Mr. 
  W. 
  R. 
  Ogilvie 
  Grant's 
  

   important 
  series 
  of 
  papers 
  had 
  begun 
  to 
  appear 
  in 
  the 
  Ibis. 
  I 
  have 
  felt 
  

   unwilling 
  to 
  let 
  the 
  list 
  leave 
  my 
  hands 
  until 
  this 
  series 
  of 
  papers 
  

   should 
  be 
  concluded. 
  

  

  The 
  unfortunate 
  interruption 
  in 
  the 
  field 
  work 
  on 
  which 
  Mr. 
  Grant's 
  

   papers 
  were 
  based, 
  resulting 
  from 
  the 
  rebellion 
  of 
  a 
  part 
  of 
  the 
  native 
  

   population 
  of 
  the 
  Philippines 
  against 
  Spanish 
  rule, 
  has 
  necessarily 
  

   brought 
  the 
  series 
  to 
  an 
  end, 
  and 
  although 
  it 
  is 
  to 
  be 
  hoped 
  that 
  Mr. 
  

   Whitehead 
  may 
  return 
  to 
  the 
  archipelago 
  at 
  some 
  future 
  time 
  and 
  con- 
  

   clude 
  his 
  work 
  in 
  the 
  highlands 
  of 
  the 
  larger 
  islands, 
  I 
  have 
  decided 
  to 
  

   publish 
  the 
  list 
  in 
  its 
  present 
  state 
  as 
  a 
  basis 
  for 
  some 
  conclusions 
  

   at 
  which 
  I 
  have 
  arrived 
  concerning 
  the 
  zoological 
  relationships 
  

   between 
  the 
  various 
  islands 
  of 
  the 
  Philippine 
  group 
  and 
  the 
  laws 
  

   governing 
  the 
  distribution 
  of 
  their 
  birds. 
  

  

  Proceedings 
  U. 
  S. 
  National 
  Museum, 
  Vol. 
  XX— 
  No. 
  1134. 
  

  

  549 
  

  

  