﻿Recently 
  published 
  Ornithological 
  Works. 
  131 
  

  

  lakes 
  and 
  streams. 
  As 
  regards 
  resident 
  species, 
  our 
  author 
  

   remarks 
  that 
  some 
  of 
  them 
  show 
  local 
  variation 
  in 
  the 
  direc- 
  

   tion 
  of 
  ivhite. 
  This 
  is 
  the 
  case 
  with 
  examples 
  of 
  such 
  birds 
  

   as 
  Pica 
  caudata, 
  Parus 
  horealif^, 
  Dendrocopus 
  minor, 
  and 
  

   Picoides 
  tridactylus 
  procured 
  in 
  Finmark. 
  Dendrocopus 
  

   major, 
  on 
  the 
  other 
  hand, 
  appears 
  to 
  be 
  unaffected 
  by 
  its 
  

   nearer 
  approach 
  to 
  the 
  polar 
  snows. 
  

  

  Speaking 
  of 
  the 
  enormous 
  development 
  of 
  the 
  Lemming 
  

   and 
  other 
  rodents 
  in 
  certain 
  years. 
  Prof. 
  Collett 
  states 
  that 
  

   a 
  corresponding 
  increase 
  of 
  beasts 
  and 
  birds 
  of 
  prey 
  seems 
  

   to 
  take 
  place 
  at 
  the 
  same 
  time. 
  The 
  mountains 
  are 
  rife 
  with 
  

   Astur 
  palumharius, 
  Archihuteo 
  lagopus, 
  Asio 
  accipitrinus, 
  

   Nyctea 
  scandica, 
  and 
  other 
  Accipitres 
  and 
  Striges. 
  Of 
  the 
  

   Snowy 
  Owl, 
  a 
  remarkable 
  instance 
  of 
  its 
  productiveness 
  in 
  

   some 
  years 
  is 
  given 
  in 
  the 
  case 
  of 
  a 
  nest 
  found 
  in 
  July 
  1872, 
  

   which 
  contained 
  four 
  half-grown 
  young, 
  2 
  of 
  smaller 
  size, 
  3 
  

   just 
  hatched, 
  besides 
  an 
  egg 
  half 
  hatched 
  — 
  altogether 
  ten 
  of 
  

   one 
  family, 
  for 
  the 
  support 
  of 
  which, 
  it 
  is 
  evident, 
  a 
  large 
  

   supply 
  of 
  rodents 
  would 
  be 
  required. 
  

  

  We 
  need 
  say 
  no 
  more 
  of 
  this 
  most 
  interesting 
  essay, 
  except 
  

   to 
  recommend 
  every 
  ornithologist 
  to 
  read 
  it. 
  It 
  is 
  a 
  foretaste 
  

   of 
  what 
  awaits 
  us 
  when 
  Prof. 
  Collett^s 
  long-expected 
  volumes 
  

   on 
  the 
  Vertebrates 
  of 
  his 
  native 
  country, 
  which 
  he 
  has 
  studied 
  

   so 
  long 
  and 
  so 
  well, 
  shall 
  make 
  their 
  appearance. 
  

  

  17. 
  D' 
  Urban 
  and 
  Mathew's 
  ' 
  Birds 
  of 
  Devon.' 
  

  

  [The 
  Birds 
  of 
  Devon. 
  By 
  W. 
  S. 
  M. 
  D'Uibau, 
  F.L.S., 
  aud 
  the 
  Rev. 
  

   Murray 
  A. 
  Mathew, 
  M.A., 
  with 
  an 
  Introduction 
  and 
  some 
  Remarks 
  on 
  

   the 
  Migrations 
  of 
  Devonshire 
  Birds. 
  8vo. 
  London 
  : 
  1892.] 
  

  

  After 
  Mr. 
  Pidsley's 
  not 
  quite 
  satisfactory 
  work 
  on 
  the 
  

   Birds 
  of 
  Devon 
  (c/. 
  Ibis, 
  1891, 
  p. 
  460) 
  follows, 
  rather 
  

   quickly 
  perhaps, 
  another 
  work 
  on 
  the 
  same 
  subject, 
  which 
  

   is, 
  at 
  all 
  events, 
  more 
  complete. 
  After 
  an 
  introduction, 
  in 
  

   which 
  the 
  geographical 
  position 
  and 
  varied 
  features 
  of 
  the 
  

   different 
  parts 
  of 
  the 
  county 
  are 
  set 
  forth 
  in 
  glowing 
  

   periods, 
  the 
  " 
  Faunistic 
  Position 
  of 
  Species 
  •" 
  is 
  considered. 
  

   This 
  to 
  us 
  somewhat 
  ambiguous 
  heading 
  will 
  be 
  found 
  to 
  

  

  k2 
  

  

  