seen from behind, the enlargement in this, as in most of the
other-species, being on the left sides The object here intended
is to show the course of the air from each lobe of the
lungs to the single, portion of the tube of the windpipe. The
column of air on the right side in the bird, and in the representation,
goes direct from the right lobe of the lungs to the
tracheal tube ; but the column of1 air on the left side, on
passing through the bronchial tube.,* is opposed by the descending
edge, and being divided* by it, -a portion is sent in
circles round the inner surface óf the cavity before it becomes
united with the air from the other lobe in . the tube common
to both. A compound tone of voice is thus produced by
which wild-fowl shooters can distinguish males from females,
of the samè'V&pëcîés, in thé darkest -night, whefieteh the birds
utter their note, and this they frequently do, apparently1 for
the purpose of keeping together. The resemblance to the
reed or other mouth-piece, and the edge opposed tó its inner
orifice,~to produce vibration, in some musical’ wind instruments,
will be obvious.
NATATORES. ANATIDÆ.
T H E GARGANEY,
or Summer Teal.
Anas querquedula, Garganey Ducky Penn. Brit. Zool. vol. ii. p. 277.
,, ,, The Garganey, Mont. Ornith. Diet.
,, ,, ,, ,, Bewick, Brit. Birds, vol. ii. p. 390.
,, ,, ,, ,, Flem. Brit. An. p. 125.
Querquedula circiu, Garganey Teal, Selby, Brit. Ornith. vol. ii. p. 318.
Anas querquedula, The Garganey, Jenyns, Brit. Vert. p. 234.
}> ,, Garganey Teal, . Gould, Birds of Europe, pt. xiii.
,, Sarcelle d'été. Temm. Man. d’Ornith. vol. ii.p. 844«
I ntermediate in size between the Teal and the Wigeon,
the birds next’in succession to be described, the Garganey is
rather a rare species, and though I have seen specimens in
October, it more frequently makes its appearance in the
spring, and then only in comparatively small numbers. These
birds are then on their way to the south, as various references
to authorities in the south of Europe, to be hereafter referred
to, will determine. A few pairs remain occasionally in the