﻿142 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  The 
  Trudeau, 
  or 
  White-headed 
  tern, 
  is 
  an 
  interesting 
  neotropical 
  species, 
  

   which 
  has 
  been 
  taken 
  once 
  on 
  Long 
  Island, 
  as 
  reported 
  by 
  Audubon 
  in 
  Ins 
  

   Synopsis 
  of 
  the 
  Birds 
  of 
  Nortli 
  America, 
  page 
  319, 
  and 
  in 
  the 
  Ornithological 
  

   Biography, 
  volume 
  5, 
  page 
  125, 
  also 
  in 
  Giraud's 
  Birds 
  of 
  Long 
  Island, 
  page 
  

   354. 
  The 
  record 
  is 
  also 
  credited 
  b}' 
  Baird, 
  Brewer 
  and 
  Ridgwa)% 
  Water 
  

   Birds, 
  vohinic 
  2, 
  page 
  291, 
  and 
  Chapman's 
  Hand 
  Book, 
  page 
  80, 
  and 
  Cham- 
  

   berlain, 
  Revised 
  Edition 
  of 
  Niittall, 
  page 
  228. 
  Audubon's 
  type 
  specimen 
  is 
  

   in 
  the 
  Giraud 
  Collection, 
  Vassar 
  College 
  Museum. 
  It 
  was 
  collected 
  by 
  

   Dr 
  Trudeau 
  at 
  Absecum 
  Beach, 
  Egg 
  Harbor, 
  N. 
  J. 
  Unfortunately 
  the 
  

   incidents 
  and 
  dates 
  connected 
  with 
  the 
  capture 
  of 
  the 
  Long 
  Island 
  specimen 
  

   were 
  not 
  definitely 
  recorded, 
  but 
  there 
  is 
  no 
  reason 
  to 
  believe 
  that 
  Audubon 
  

   was 
  mistaken 
  regarding 
  the 
  identity 
  of 
  the 
  bird. 
  

  

  Sterna 
  forsteri 
  Nuttall 
  

  

  Forster 
  Tern 
  

  

  Plate 
  7 
  

  

  Sterna 
  forsteri 
  Nuttall. 
  Manual. 
  1834. 
  2:274 
  

  

  A. 
  O. 
  U. 
  Check 
  List. 
  Ed. 
  2. 
  1895. 
  No. 
  69 
  

  

  jor'steri, 
  of 
  John 
  Reinhold 
  Forster 
  

  

  Distinctive 
  marks. 
  Bill 
  larger 
  than 
  in 
  the 
  Common 
  tern, 
  dull 
  orange 
  

   with 
  dusky 
  tip 
  ; 
  black 
  cap 
  does 
  not 
  extend 
  as 
  far 
  down 
  as 
  in 
  h 
  i 
  r 
  u 
  n 
  d 
  o, 
  leav- 
  

   ing 
  more 
  white 
  between 
  the 
  eye 
  and 
  upper 
  mandible 
  ; 
  wings 
  relatively 
  shorter 
  ; 
  

   primaries 
  silvery, 
  the 
  outer 
  web 
  of 
  the 
  first 
  not 
  black; 
  wings 
  w^hiter 
  than 
  

   in 
  the 
  other 
  species; 
  under 
  parts 
  and 
  runi]) 
  white; 
  mantle 
  and 
  tail 
  pale 
  

   pearl-gray; 
  outer 
  tail 
  feathers 
  ivhite 
  on 
  their 
  outer 
  ivebs, 
  gray 
  on 
  the 
  inner; 
  

   feet 
  orange-red. 
  Aditll 
  in 
  winter: 
  Tail 
  less 
  forked, 
  the 
  peculiar 
  pattern 
  

   of 
  the 
  outer 
  feathers 
  less 
  distinct; 
  crown 
  white 
  more 
  or 
  less 
  tinged 
  on 
  the 
  

   back 
  of 
  the 
  head 
  with 
  gray 
  ; 
  a 
  black 
  stripe 
  from 
  before 
  the 
  eye 
  back 
  across 
  the 
  

   car 
  coverts. 
  Young: 
  Similar, 
  washed 
  with 
  grayish 
  brown 
  on 
  the 
  upper 
  

   parts, 
  and 
  the 
  primaries 
  have 
  more 
  distinct 
  spaces 
  of 
  w^iite 
  on 
  their 
  inner 
  

   webs, 
  like 
  the 
  Common 
  tern. 
  

  

  Length 
  15 
  inches; 
  extent 
  30; 
  wing 
  9.5-10.5; 
  tail 
  5-8, 
  forked 
  2.5-5; 
  

   bill 
  T. 
  5-1. 
  75; 
  dc]^th 
  of 
  bill 
  .4; 
  tarsus 
  .9-1; 
  middle 
  toe 
  and 
  claw 
  i-i.i. 
  

  

  