1898) GULAR POUCH OF THE GREAT BUSTARD 319 
“ Tf the paroxysm is a strong one, then the tail is shot upwards 
and forwards over the back, the rectrices coming almost in contact 
with the neck. 
“In this peculiar attitude, with bloated neck, hanging baggy 
chest, elevated tail, and stiff stilt-like legs, the creature struts about 
in a somewhat waddling manner, the elongated pouch swaying 
to and fro.’ The feathers of the throat start out on end; those of 
Fic. 3.—The oesophagus, trachea, and gular pouch of a specimen of Ofis tarda, seen from the 
side. The crop is here drawn as in the actual preparation, projecting backwards, and 
not forwards as usual. (After Garrod.) 
the depending sac are also raised, but less upright. While all this 
has taken place the bird seems to have gulped in air, or rather, 
with partly opened gape, to have taken a long, deep and forced 
inspiration. 
“The acme of inspiratory effort and strange attitude attained, 
the Bustard begins to snap the mandibles together in a loud manner 
and utter a series of cooing sounds for a short interval of time. 
Usually and more frequently he struts towards the female Bustards 
in a most dignified manner, or oblivious as to sex, totters up to any 
of the birds in the same enclosure.” 
Some years later (in 1873) the mouth of this identical Bustard 
was examined by Professor Garrod—Dr Murie’s successor to the 
Prosectorship,—with a view to finding a sublingual orifice such as 
obtains in 0. tarda. There was no trace of any such orifice. This 
1 The spaced type is mine. 
