﻿338 
  Mr, 
  J. 
  H. 
  Gurney 
  on 
  Raptorial 
  

  

  dromus 
  savannarum^ 
  , 
  and 
  Eupsychortyx 
  cristatus-\. 
  These 
  

   facts 
  are 
  very 
  interesting 
  and 
  should 
  be 
  studied 
  more 
  

   thoroughly 
  : 
  they 
  seem 
  to 
  point 
  to 
  the 
  theory 
  that 
  the 
  

   Virgin 
  Islands 
  and 
  the 
  islands 
  of 
  Bonaire 
  and 
  Curasao 
  J 
  were 
  

   formerly 
  connected 
  in 
  some 
  way^ 
  or 
  that 
  they 
  are 
  of 
  the 
  

   same 
  geological 
  age_, 
  and 
  not 
  of 
  the 
  same 
  age 
  as 
  the 
  Wind- 
  

   ward 
  Islands. 
  Perhaps 
  there 
  was 
  once 
  a 
  line 
  of 
  islands 
  

   (similar 
  to 
  that 
  of 
  the 
  Lesser 
  Antilles) 
  reaching 
  from 
  

   St. 
  Thomas 
  through 
  " 
  Los 
  Aves/' 
  or 
  the 
  Bird 
  Island, 
  by 
  

   way 
  of 
  Blanca, 
  Orchilla, 
  Grand 
  Cay, 
  Los 
  Roques, 
  and 
  

   the 
  second 
  group 
  called 
  " 
  Los 
  Aves/^ 
  to 
  Bonaire 
  and 
  

   Curacao. 
  

  

  (3) 
  The 
  avifaunas 
  of 
  the 
  three 
  islands 
  are 
  generally 
  very 
  

   similar, 
  but 
  some 
  interesting 
  differences 
  are 
  obvious. 
  Bonaire 
  

   has 
  most 
  species 
  of 
  West-Indian 
  origin, 
  while 
  Aruba 
  has 
  

   most 
  continental 
  forms, 
  as 
  would 
  be 
  expected 
  from 
  their 
  

   situation. 
  

  

  (4) 
  The 
  facts 
  brought 
  to 
  light 
  through 
  my 
  little 
  collection 
  

   should 
  induce 
  ornithologists 
  to 
  explore 
  the 
  other 
  small 
  

   islands 
  on 
  the 
  Venezuelan 
  coast, 
  such 
  as 
  Grand 
  Cay, 
  Orchilla, 
  

   Blanca, 
  and 
  Margarita. 
  

  

  XXX. 
  — 
  On 
  the 
  Collection 
  of 
  Eaptorial 
  Birds 
  in 
  the 
  Norwich 
  

   Museum. 
  By 
  J. 
  H. 
  Gurney. 
  

  

  The 
  Raptorial 
  Collection 
  in 
  the 
  Norfolk 
  and 
  Norwich 
  

   Museum 
  will 
  before 
  long 
  be 
  transferred 
  to 
  Norwich 
  Castle, 
  

   together 
  with 
  the 
  rest 
  of 
  the 
  treasures 
  in 
  the 
  Museum, 
  and 
  

   handed 
  over 
  to 
  the 
  Corporation. 
  In 
  this 
  ancient 
  building, 
  

  

  * 
  Ammodromus 
  savannarum 
  is 
  not 
  found 
  in 
  the 
  Lesser 
  Antilles, 
  but 
  

   occurs 
  in 
  Porto 
  Rico, 
  very 
  near 
  to 
  St. 
  Thomas. 
  See 
  Cory, 
  Cat. 
  W. 
  Tnd. 
  B. 
  

   p. 
  112. 
  

  

  t 
  It 
  is 
  said 
  that, 
  although 
  E, 
  sonninii 
  occurs 
  on 
  St. 
  Thomas, 
  it 
  has 
  been 
  

   introduced 
  from 
  Venezuela 
  {cf. 
  Cassin, 
  Proc. 
  Ac. 
  Nat. 
  Sci. 
  Philad. 
  1860, 
  

   p. 
  378 
  ; 
  Newton, 
  Ibis, 
  1860, 
  p. 
  308 
  ; 
  and 
  Berl. 
  J. 
  f. 
  O. 
  1892, 
  p. 
  100). 
  If 
  

   this 
  is 
  correct, 
  no 
  weight 
  should 
  be 
  attached 
  to 
  the 
  occm-rence 
  of 
  a 
  

   different 
  species 
  {E. 
  cristatus) 
  in 
  the 
  Curafao 
  group. 
  

  

  X 
  To 
  Aruba 
  these 
  species 
  may 
  have 
  been 
  brought 
  by 
  the 
  trade-wind 
  

   from 
  the 
  other 
  two 
  islands. 
  

  

  