INSTRUMENTAL MUSIC. 
63 
C «AP. XIII. 
u "ilar Lill produces tlie correct sound.” When the 
. e utters its cry without striking his beak the sound 
Sjuite different . 51 
of 11 f° r eg°ing cases sounds are made by the aid 
^ s fouctures already present and otherwise necessary ; 
g , ln the following cases certain feathers have been 
- ecial ly modified for the express purpose of producing 
tj| e Sou uds. The drumming, or bleating, or neignmg, or 
wl ' U :;fonng noise, as expressed by different observers, 
^ le 1 is made by the common snipe (Scolojpax gallinago) 
pj lSt ^ J ave surprised every one who has ever lieai’d it. 
<i / ^ird, during the pairing-season, flies to “perhaps a 
for L ° U * aEc! foot in height,” and after zig-zagging about 
an/ tlnie < fo st ' eil( ls in a curved line, with outspread tail 
fiuivering pinions, with surprising velocity to the 
‘‘‘g. 41. 
Outer tail-feather of ScoJopax gallinago (from Proc, Zoo). Soc. 1 853). 
e arth. 
,j ( . ' fhe sound is emitted only during this rapid 
Jj ... t- No one was able to explain the cause, until 
f e ^„ e?es observed that on each side of the tail the outer 
sab blS aie P ecu liarly formed (fig. 41), having a stiff 
te 'sliaped shaft, with the oblique barbs of unusual 
Ji 
L^ierlliZ? forgoing several facts see, on Birds of Paradise, Brchm, 
hor. , 6jen > Band iii. s, 325. On Grouse, ltichardson, ‘Fauna 
: Birds,’ p. 313 and 309; Major W. Ross Kin"-, ‘The 
‘Qeol, f ln Canada,' 1866, p. 156; Mr. Haymoud, in Prof. Cox’s 
tl io^n ra , \ " rve y °t' Indiana,’ p. 227; Auduhon, ‘American Ornitholog. 
fodia,,’ y' ,1 '• P- 216. On the Kalij-pheasant, Jerdon, 1 Birds of 
"‘a- g’ l 11 ' P- '’33. On the Weavers, ‘ Liviugslono’s Expedition to 
foitish ^865, p.425. On Woodpeckers, Macgillivray, ‘Hist, of 
®*r. Swinh 1 * 18 ’' Vo1 ' iii - 1810 > T- 8 ‘b 88 > 8l t IIU, 1 95. On the Hoopoe, 
^UbonV in ‘ Proc - Zoolog. Soc.’ June 23, 1S63. On the Night- Jar. 
‘ a the s lbi<1 - v °k it- p. 255. The English Night-Jar likewise makes 
lll o a curious noise during its rapid flight. 
