﻿ACADEMY 
  OF 
  SCIENCES. 
  . 
  29 
  

  

  tan 
  Pass, 
  near 
  Unalashka, 
  June 
  2, 
  1872. 
  It 
  was 
  not 
  observed 
  on 
  any 
  other 
  

   occasion. 
  Iris 
  black. 
  

  

  Jnser 
  Gambelli, 
  Hartl. 
  (565.) 
  

  

  This 
  species 
  is 
  reported 
  as 
  occurring 
  incidentally 
  in 
  spring 
  and 
  fall 
  on 
  the 
  

   islands 
  near 
  Unalashka, 
  which 
  lie 
  on 
  its 
  way 
  to 
  and 
  from 
  its 
  northern 
  breeding 
  

   grounds. 
  "We 
  obtained 
  no 
  specimens. 
  

  

  Philade 
  canagica, 
  Bann. 
  (573.) 
  

  

  This 
  species 
  which 
  has 
  been 
  reported 
  from 
  the 
  Aleutian 
  Islands, 
  did 
  not 
  

   occur 
  among 
  our 
  collections 
  in 
  the 
  region 
  visited. 
  I 
  was 
  at 
  some 
  pains 
  to 
  make 
  

   inquiries 
  in 
  regard 
  to 
  it, 
  and 
  it 
  appeared 
  to 
  be 
  unknown 
  to 
  the 
  natives. 
  Mr. 
  

   B. 
  Bendel, 
  however, 
  informs 
  me 
  that 
  during 
  some 
  seasons 
  it 
  is 
  very 
  abundant 
  on 
  

   the 
  Islands 
  of 
  Akhun 
  and 
  Unalashka, 
  but 
  not 
  near 
  the 
  settlements. 
  

  

  Anas 
  boschas, 
  Lin. 
  (576.) 
  

  

  This 
  is 
  one 
  of 
  the 
  most 
  abundant 
  winter 
  visitors 
  among 
  the 
  ducks 
  at 
  Una- 
  

   lashka. 
  It 
  occurred 
  in 
  plenty 
  as 
  early 
  as 
  October 
  12th, 
  1871, 
  and 
  was 
  to 
  be 
  

   found 
  from 
  that 
  time 
  until 
  the 
  succeeding 
  month 
  of 
  April, 
  when 
  it 
  migrates 
  

   northward. 
  

  

  Nettion 
  carolinensis, 
  Baird. 
  (579.) 
  

  

  Plenty 
  in 
  winter, 
  and 
  is 
  said 
  to 
  breed 
  occasionally 
  in 
  Unalashka 
  ; 
  though 
  the 
  

   greater 
  number 
  of 
  individuals 
  migrate 
  northward 
  about 
  May 
  Ist. 
  

  

  Qiierquedula 
  discors, 
  Steph. 
  (521.) 
  

  

  This 
  species 
  is 
  doubtfully 
  reported 
  as 
  occurring 
  at 
  Unalashka 
  in 
  winter. 
  We 
  

   saw 
  nothing 
  of 
  it. 
  

  

  Marecn 
  penelope, 
  Bon. 
  (586.) 
  

  

  Obtained 
  at 
  Unalashka, 
  October 
  12th, 
  1871. 
  Not 
  uncommon 
  among 
  the 
  

   ducks 
  brought 
  in 
  by 
  the 
  native 
  hunters 
  of 
  that 
  locality. 
  A 
  winter 
  visitor, 
  mi- 
  

   grating 
  about 
  May 
  1st. 
  

  

  Bucephala 
  americana, 
  Baird. 
  (593.) 
  

  

  A 
  winter 
  visitor 
  at 
  Unalashka, 
  migrating 
  in 
  the 
  spring. 
  Eye, 
  pale 
  yellow 
  

   brown. 
  

  

  Histrionkus 
  torquatus, 
  Bon. 
  (596.) 
  

  

  A 
  winter 
  visitor 
  at 
  Unalashka, 
  and 
  rather 
  common. 
  It 
  remains 
  later 
  than 
  

   most 
  of 
  the 
  ducks 
  ; 
  and 
  some 
  individuals 
  may 
  remain 
  and 
  breed. 
  Also, 
  not 
  

   rare 
  at 
  the 
  Shumagins 
  in 
  summer. 
  

  

  Harelda 
  glacial 
  is, 
  Leach. 
  (597.) 
  

  

  Eye 
  pale 
  brown. 
  A 
  resident, 
  and 
  quite 
  common 
  ; 
  exhibiting 
  great 
  variety 
  

   in 
  coloration 
  of 
  plumage, 
  as 
  also 
  observed 
  on 
  the 
  Yukon. 
  

  

  