
 
		foliage  as  if  a  strong  wind  were  blowing  through the trees.  This  is  caused by  the movements  of  
 innumerable  birds  who,  in  the  attempt  to  secure  positions  nearer  the  centre  of  the roost,  or in  
 thicker foliage, are continually darting from place to place, often plunging headlong into  the  branches  
 or  dropping  through  the  leaves  with  much  awkward  and  noisy  fluttering.  Either  because  of  
 inability to  see distinctly in  the  dim  light,  or with deliberate design to  dispossess their fellows,  such  
 restless  spirits  often  try  to  appropriate  perches  already occupied,  and  the  squabbles  which  ensue,  
 although  quickly  ended  by  one  or  the  other  giving  way,  are  accompanied  by outcries which rise  
 above  the  general  din  of  shrill,  varied  voices.  I f   it  is  early  in  the  season  there  is  also  more  
 or less  singing. 
 “ But the most  characteristic and peculiar  sound to  be  heard  in a roost is that produced by the  
 myriad  wings  constantly  striking  the  leaves.  This  closely  resembles  the  patter of  hail  or  large  
 rain-drops  on  dry  foliage  at  the  beginning  of  a  shower.  There  is  also  an  equally  steady and  
 similar  but  slighter  sound  of  falling  excrement,  with  which  the  ground  and  bushes  beneath  the  
 roost  are • so  thickly  covered  at  times  as  to look as if  sprinkled with  snowflakes.  As  the darkness  
 deepens  the  tumult  gradually  subsides.  One  by  one  the  shrill  voices  are hushed and the nervous  
 flutterings  cease,  until,  when  the light has quite gone from  the west and  the  stars  are all out in  the  
 great  dome  overhead,  a  person might pause under the. trees and listen intently for minutes  without  
 hearing anything  save the occasional  drowsy  chirp  or  faint  rustle  of  some  half-awakened  bird  sole  
 tokens of the feathered host bivouacking in the leafy  canopy above,” 
 Adult  male  in  breeding-plumage.  General  colour  above  ashy-grey,  the  hind-neck  and  mantle  
 mottled  with  black  bases  to  the  feathers,  the  lower  back,  rump,  and  upper  tail-coverts  uniform  
 ashy-grey,  clearer  towards  the  latter;  wing-coyerts  like  the  back,  with  dusky  blackish  bases;  
 greater  coverts  and  quills  blackish,  externally  ashy-grey,  inclining  to  hoary grey  on  the margins,  
 the  primaries  with  a  narrow  edging  of  white;  tail-feathers  black,_narrowly  fringed  with  grey,  
 the  three  outer  feathers  with  white  tips,  represented  by  a  large  spot of white on the outermost,  
 a  small  band  at  the  tip  of  the  penultimate,  and  a  narrow  fringe at the  end of  the  third feather;  
 crown  of  head  and  nape  black,  as  well  as  the  sides  of  the  face,  ear-coverts,  and  cheeks;  the  
 black  on  the  nape  tolerably  well-defined  and  distinct  from  the  hind-neck,  which  is  mottled  
 with  black  bases  to  the  feathers  as  on  the  mantle;  above the lores and above the  eye a few white  
 feathers,  not  sufficient  to  form  an  eyebrow  ;  below  the  eye  a  spot  of  white;  fore  part  of  cheeks  
 streaked  with  white;  chin  white;  throat  black,  the  feathers  margined  with  white,  producing  
 a  streaked  appearance;  under  surface  of  body  from  the  fore-neck  downwards  bright  cinnamon-  
 chestnut,  white  on  the  lower  abdomen,  lower  flanks,  vent,  thighs,  and  under  tail-coverts;  the  
 sides  of  the  lower  flanks  ashy-brown;  under  wing-coverts' and  axillaries  cinnamon-chestnut,  
 the  latter  with  obscure  white  margins;  quills  ashy-brown below:  bill lemon-yellow,  dusky along 
 the  sides  and  at  the  tip;  feet  pale  brown;’iris  hazel”  {J.  J. Audubon).  Total  length  9*5  inches,  
 culmen  0*95, wing  5*2, tail 8*65,  tarsus  1*3. 
 Adult  female  in  breeding-flumage.  Like  the  male,  but  not  so  rich  in  colour  below,  and  
 with  remains  of  whitish  margins  to  the  feathers  of  the under  surface;  the hind-neck and  mantle  
 not  so  much  mottled  with  blackish  centres  to  the  feathers.  Total length  9*4 inches,  culmen 0*95,  
 wing 5*2, tail 3*6, tarsus  1*35. 
 Nestling.  Dusky-grey  above,  mottled  with  black  margins  and  longitudinal  ochreous-buff  
 centres  to  the  feathers;  the  lesser  and  median  wing-coverts  with  triangular  spots  of  buff  at the  
 ends,  the  greater  series  edged  externally with ochreous-buff,  like the  quills, and  tipped with buffy-  
 white;  inner  secondaries  margined  with  white  at  the  ends;  lower  back,  rump,  and  upper  
 tail-coverts more ashy-grey, narrowly lined with  buffy-white  shaft-stripes and faint  blackish margins;  
 tail-feathers  as  in  the  adults,  and  the  white  spots  on the  outer  ones very well marked;  crown  of 
 head  and  sides  of  face  black;  throat  and  cheeks  white,  slightly  tinged  with  yellow, but without  
 spots,  excepting  a  broad  malar  line  of  black  spots;  remainder  of  under  surface  orange-rufous,  
 deeper  on  the  sides of  the  body,  the feathers  edged with  black,  broadly on the fore-neck and breast,  
 and less  distinctly on  the abdomen and under tail-coverts, which  are. white. 
 Young birds,  after their  first moult, are  dark  olive above,  the black feathers of  the  crown  being  
 edged with  dark olive,  so  that  there is often  scarcely any black  to  be  seen.  The white  eyebrow,  as  
 pointed out  by Mr. Ridgway,  is  not  interrupted, but appears  to be  continuous above  the  eye,  though  
 not  reaching  far  above  the  ear-coverts.  The  median  and  greater wing-coverts have  ochreous-buff  
 or  whitish  margins;  the  rufous  colour  of  the  underparts  is  not  so  deep  chestnut, but  more  of  an  
 orange-cinnamon,  the  feathers  edged with white  or  ashy,  the latter  colour prevailing on the margins  
 of the breast-feathers;  the  throat is white, with  scarcely any black  streaks. 
 The  females  are  never  of  such  a  deep  rufous  underneath  as  the males,  and  as  the breeding-  
 season  approaches  the  plumage  becomes  greyer,  and  the  hind-neck  and  mantle  become  mottled  
 with  black  in  the  males.  This  does  not  seem  to  be  the  case with adult females, which have  the  
 black  confined  to  the  crown.  The  dark bill of  the winter  season becomes  yellow with a black  tip  
 during the  summer. 
 The old birds described  are a  pair from Alaska  in  the Hen shaw-Collection.  An  adult bird has  
 been  figured  by  Mr.  Seebohm,  but  the  figure gives  no  idea of the  extent of the white at  the  end of  
 the outer tail-feathers.  [R.  J3.  S.] 
 VOL.  i.