﻿324 
  JOURNAL 
  OF 
  THE 
  WASHINGTON 
  ACADEMY 
  OF 
  SCIENCES 
  VOL. 
  12, 
  NO. 
  14 
  

  

  black; 
  broad 
  band 
  across 
  throat 
  darker 
  than 
  bister, 
  marked 
  irregularly 
  

   with 
  dull 
  cream-buff; 
  lower 
  fore-neck 
  and 
  upper 
  breast 
  broadly 
  white 
  in 
  

   center 
  ; 
  sides 
  of 
  fore-neck 
  and 
  breast 
  duller 
  than 
  snuff 
  -brown 
  spotted 
  obscurely 
  

   with 
  cinnamon-buff 
  and 
  white 
  ; 
  remainder 
  of 
  underparts 
  dull 
  white 
  streaked 
  

   somewhat 
  irregularly 
  with 
  bister; 
  sides 
  and 
  flanks 
  wood 
  brown, 
  somewhat 
  

   mixed 
  with 
  white; 
  tibiae 
  verona 
  brown 
  mixed 
  with 
  cinnamon-buff; 
  tarsi 
  

   grizzled 
  with 
  white, 
  bister, 
  and 
  cinnamon-buff; 
  under 
  wing 
  coverts 
  fuscous- 
  

   black 
  mixed 
  with 
  white. 
  Tip 
  of 
  bill 
  deep 
  olive-buff; 
  base 
  puritan 
  gray, 
  

   shading 
  to 
  deep 
  olive-buff 
  at 
  base, 
  gray 
  clearer 
  on 
  mandible, 
  indistinct 
  on 
  

   maxilla; 
  iris 
  pale 
  greenish 
  yellow 
  (from 
  fresh 
  specimen). 
  

  

  Measurements. 
  — 
  Males 
  (2 
  specimens), 
  wing 
  104.1-106.0, 
  tail 
  70.0-76.2, 
  

   culmen 
  from 
  cere 
  (one 
  specimen 
  only) 
  12.0 
  mm. 
  Females 
  (2 
  specimens), 
  

   wing 
  110.0-114.0,^ 
  tail 
  (one 
  specimen) 
  74.6,^ 
  culmen 
  from 
  cere 
  (one 
  specimen) 
  

   12.5 
  mm.3 
  

  

  Range. 
  — 
  Central 
  Chile 
  (known 
  from 
  Santiago, 
  Valparaiso, 
  Rio 
  Blanco 
  

   (altitude 
  1470 
  metres), 
  and 
  Tofo, 
  sixty 
  miles 
  north 
  of 
  Coquimbo). 
  

  

  Remarks 
  .—The 
  present 
  form, 
  a 
  northern 
  race 
  of 
  Glaucidium 
  nanum, 
  may 
  

   be 
  expected 
  to 
  range 
  northward 
  through 
  the 
  Andes 
  into 
  Bolivia, 
  and 
  perhaps 
  

   farther. 
  Specimens 
  from 
  Temuco, 
  Chile, 
  near 
  the 
  border 
  of 
  the 
  forest 
  belt, 
  

   and 
  from 
  the 
  Andes 
  in 
  Chubut, 
  are 
  intermediate 
  between 
  nanum 
  and 
  vafrum 
  

   but 
  seem 
  nearer 
  the 
  former. 
  True 
  nanum, 
  from 
  the 
  material 
  at 
  hand 
  there- 
  

   fore 
  may 
  be 
  said 
  to 
  extend 
  northward 
  through 
  the 
  humid 
  forest 
  belt 
  of 
  south 
  

   Chile 
  and 
  the 
  southern 
  Andes, 
  and 
  to 
  be 
  replaced 
  beyond 
  that 
  point 
  by 
  vafrum. 
  

  

  Six 
  skins 
  representing 
  vafrum 
  have 
  been 
  examined, 
  a 
  male, 
  and 
  one 
  marked 
  

   female, 
  doubtfully 
  so 
  since 
  the 
  wing 
  measures 
  only 
  103.7 
  mm. 
  (not 
  included 
  

   in 
  the 
  measurements 
  given 
  above) 
  from 
  Santiago, 
  a 
  female 
  from 
  Concon, 
  

   one 
  with 
  sex 
  not 
  marked 
  from 
  Valparaiso, 
  a 
  questionable 
  male 
  from 
  an 
  altitude 
  

   of 
  1470 
  metres 
  on 
  the 
  Rio 
  Blanco, 
  and 
  a 
  female 
  from 
  Tofo, 
  sixty 
  miles 
  north 
  

   of 
  Coquimbo. 
  Five 
  specimens 
  of 
  nanum, 
  from 
  near 
  the 
  type 
  locality 
  in 
  

   the 
  vicinity 
  of 
  the 
  Straits 
  of 
  Magellan 
  (Punta 
  Arenas, 
  Laredo 
  Bay 
  and 
  Tierra 
  

   del 
  Fuego), 
  all 
  agree 
  in 
  having 
  the 
  light 
  and 
  dark 
  bands 
  on 
  the 
  tail 
  of 
  about 
  

   equal 
  width. 
  The 
  dark 
  tail 
  bands 
  in 
  specimens 
  from 
  farther 
  north 
  become 
  

   slightly 
  broader, 
  but 
  even 
  those 
  from 
  as 
  far 
  north 
  as 
  Temuco 
  in 
  Chile 
  and 
  

   northern 
  Chubut 
  in 
  Argentina 
  agree 
  best 
  with 
  nanum. 
  It 
  may 
  be 
  noted 
  

   that 
  Scott 
  and 
  Sharpe 
  (Princeton 
  Univ. 
  Exp. 
  Patagonia, 
  2*: 
  70S. 
  /. 
  j6o. 
  

   1915) 
  figure 
  nanum 
  from 
  Punta 
  Arenas 
  with 
  a 
  narrow 
  tail 
  band, 
  as 
  does 
  

   Crawshay 
  (Birds 
  of 
  Tierra 
  del 
  Fuego, 
  pi. 
  35. 
  1907) 
  in 
  the 
  case 
  of 
  a 
  bird 
  from 
  

   Tierra 
  del 
  Fuego, 
  and 
  Koslowsky 
  (El 
  Hornero 
  1: 
  pi. 
  III. 
  Sept. 
  1919) 
  in 
  one 
  

   from 
  north 
  of 
  Lago 
  Buenos 
  Aires, 
  Santa 
  Cruz. 
  In 
  all 
  I 
  have 
  examined 
  10 
  

   specimens 
  that 
  may 
  be 
  referred 
  to 
  nanum 
  and 
  6 
  that 
  represent 
  vafrum. 
  

  

  There 
  is 
  considerable 
  uncertainty 
  as 
  to 
  whether 
  nanum 
  should 
  be 
  main- 
  

   tained 
  as 
  a 
  distinct 
  species 
  or 
  whether 
  both 
  nanum 
  and 
  vafrum 
  should 
  be 
  

   placed 
  as 
  subspecies 
  of 
  hrasilianum. 
  The 
  distinctions 
  between 
  the 
  sub- 
  

   species 
  that 
  compose 
  brasilianum 
  and 
  the 
  two 
  into 
  which 
  nanum 
  is 
  divided 
  

  

  ' 
  Type. 
  

  

  