﻿132 
  NEAV 
  YORK 
  STATE 
  MUSEUM 
  

  

  the 
  northcm 
  Adirondacks 
  found 
  in 
  the 
  Ank, 
  vohuno 
  10, 
  jx-ige 
  209, 
  should 
  

   probably 
  bo 
  referred 
  to 
  the 
  HeiTing 
  gnll. 
  

  

  Migration. 
  On 
  Long 
  Island 
  Dr 
  Braislin's 
  dates 
  in 
  ihe 
  fall 
  are 
  Se]nent- 
  

   ber 
  5 
  to 
  Xovember 
  12. 
  in 
  spring- 
  from 
  March 
  j; 
  to 
  Max 
  15; 
  Mr 
  l)uicher"s 
  

   dates 
  range 
  from 
  Aitgnst 
  27 
  to 
  April 
  10. 
  At 
  Rochester 
  it 
  an-ives 
  from 
  

   the 
  south 
  in 
  considerable 
  numbers 
  from 
  the 
  25th 
  of 
  March 
  to 
  the 
  5th 
  of 
  

   April, 
  and 
  is 
  commonest 
  about 
  the 
  middle 
  of 
  April, 
  departing 
  for 
  the 
  north 
  

   about 
  the 
  loth 
  of 
  May. 
  In 
  the 
  fall 
  it 
  seems 
  to 
  be 
  less 
  common, 
  occnrrini' 
  

   during 
  October 
  and 
  early 
  November. 
  

  

  With 
  us 
  the 
  habits 
  and 
  food 
  of 
  this 
  species 
  do 
  not 
  differ 
  materially 
  

   from 
  those 
  of 
  the 
  Herring 
  gtill, 
  btit 
  in 
  the 
  interior 
  of 
  America 
  it 
  is 
  said 
  to 
  

   live 
  principall>' 
  on 
  grasshoppers 
  and 
  other 
  insects 
  which 
  it 
  captures 
  both 
  

   in 
  the 
  air 
  and 
  on 
  the 
  ground. 
  In 
  the 
  vicinity 
  of 
  Rochester. 
  X. 
  V., 
  it 
  fre- 
  

   quents 
  the 
  "wide 
  waters'" 
  of 
  the 
  Erie 
  canal 
  before 
  the 
  water 
  is 
  admitted 
  

   in 
  the 
  spring, 
  to 
  feed 
  on 
  the 
  refuse 
  and 
  dead 
  fish, 
  and 
  sometimes 
  gathers 
  

   in 
  great 
  numbers 
  on 
  the 
  fields 
  where 
  garbage 
  is 
  scattered, 
  late 
  in 
  March 
  

   and 
  early 
  in 
  April. 
  

  

  Larus 
  atricilla 
  Linnaeus 
  

   Lattghirig 
  Gull 
  

  

  Plate 
  o 
  

  

  h 
  ariis 
  a 
  trioiUa 
  Linnaexis. 
  Syst. 
  Nat. 
  Ed. 
  10. 
  175S. 
  136 
  

  

  DeKay. 
  Zool. 
  N. 
  Y. 
  1S44. 
  pt 
  2. 
  p. 
  ^lo. 
  fisf. 
  2S0, 
  200, 
  296 
  

   A. 
  O. 
  U. 
  Check 
  List. 
  Ed. 
  2. 
  1895. 
  ^'c.- 
  5^"^ 
  

  

  atnciTh, 
  Lat. 
  black-tail: 
  only 
  applicable 
  to 
  the 
  young 
  (Coues) 
  

  

  Description. 
  Adult 
  in 
  summer: 
  Head 
  and 
  throat 
  slatv 
  black: 
  mantle 
  

   dark 
  slate 
  cv^lor; 
  first 
  six 
  ptnmaries 
  black, 
  usually 
  with 
  white 
  tips, 
  their 
  

   bases 
  like 
  the 
  mantle 
  for 
  an 
  increasing 
  distance 
  from 
  the 
  fit-st 
  to 
  the 
  inner- 
  

   most: 
  neck, 
  nmip, 
  tail, 
  tips 
  of 
  the 
  secondaries, 
  and 
  under 
  parts 
  white, 
  

   the 
  breast 
  and 
  belh' 
  with 
  a 
  ros>- 
  tinge: 
  bill 
  deep 
  canifine 
  red 
  with 
  dtiskv 
  

   tip; 
  teet 
  dusky 
  red; 
  iris 
  blackish: 
  evelids 
  carmine; 
  mouth 
  deep 
  red. 
  In 
  

   mntcr: 
  Head 
  white 
  mixed 
  with 
  blackish; 
  bill 
  and 
  feet 
  more 
  dusk\-: 
  under 
  

   parts 
  pure 
  white. 
  Immature; 
  The 
  mantle 
  mixed 
  with 
  patches 
  of 
  gravish 
  

   brown: 
  pnmanes 
  bro\\Tiish 
  black, 
  lighter 
  toward 
  the 
  tips: 
  outer 
  webs 
  of 
  

   secondaries 
  bro\M-iish 
  black: 
  tail 
  plumbeous 
  grav 
  with 
  a 
  broad 
  band 
  of 
  

   black 
  at 
  the 
  tip: 
  upjx^r 
  tail 
  adverts 
  and 
  under 
  parts 
  white, 
  sometimes 
  washed 
  

  

  