* 
BULLETIN 
OF THE 
NllTTALL ORNITHOLOGICAL CLUB: 
% (^iwrtcrln Joumitl of (Dmitbolcngrr. 
Vol. VI. — OCTOBEH, 1881. — No. 4. 
CONTENTS. 
j On Some of the Causes affecting the 
Decrease of Birds. By H. W. Ilensliaw, 1S9 
On the Ossicle of the Antibrachium as 
FOUND IN SOME OF THE NORTH AMERICAN 
Hawks. By R. W. Shufeldt , M. D., Capt. 
Med. Dept , U. S. Army 197 
Oological Notes from Montana. By Dr. 
J. C. Merrill , U. S. A 203 
On a Tropical American Hawk to be ad- 
ded to the North American Fauna. By 
Robert Ridgway 207 
On Podiceps occidentalis and P. clarlcii. By 
H. W. Henshaw 214 
' On the Relationship • of Helm inthophaga 
.. lencobronchialis , Brewster, and Helmin- 
thophaga lawrencei, Herrick; with some « 
conjectures respecting certain other 
North American Birds. By William 
r. Brewster 21S 
j Preliminary List of Birds ascertained 
TO OCCUR IN THE ADIRONDACK REGION, 
North-eastern New York. By C. Hart 
- Merriam, M. D 225 
Recent Literature. — Stearns and Coues’s 
“New England Bird Life,” 236; CoryV‘ Beautiful 
I 
Cmntrribgc, IJjtass, * 
PUBLISHED BIT THE OIL.TJB. 
W. H. Wheeler, Printer , 77 Brighton St., Cambridge, Mass. 
and Curious Birds,” 239; Minot’s “ Land and 
Game Birds of New England,” 241. 
General Notes. — The Golden-crested Wren 
breeding in the Colorado Valley, 244; Notes on 
the Winter Wren {Anortliura troglodytes hyema- 
lis), 244; Two more specimens of Helmintho- 
phaga leucobronchialis from Sing Sing, N.Y., 
245 ; Another specimen of Siurus motacilla at 
Lake George, N. Y., 245; Myiodioctes canaden- 
sis in Kansas, 246; Capture of the Worm-eating 
Warbler in Massachusetts, 246; Melospiza lincol- 
ni breeding in New Y ork again, 246 ; Xanthoceph- 
alus icterocephalus in Lower Canada, 246 ; Colaptes 
auratus+C. mexicanus, 247; Further Notes on 
the Labrador Gyrfalcon taken on Long Island, 
N. Y., 247; Probable .Occurrence of Sarcorham- 
phuspapa in Arizona, 248 ; Nyctherodius violaceus 
in Kansas, 248; Capture of the Snowy Heron 
( Garzetta candidissima ) on Long Island, 248; 
Lobipes hyperboreus at 9300 feet, 249; Breeding of 
Barrow’s Golden-eye in Lower Canada, 249 ; Notes 
on a few Maine Birds, 249; Destruction of Birds 
by a Storm while migrating, 250; Additions to 
the Avi-fauna of the United States, 252. 
Index 253 
