lifj, THE MIGRATION OF BIRDS. 50i 
secondly, that tliey should know which way to 
6',r^^^‘''^course, and whither to go. 
iiciy" passage are all peculiarly accommodated, by the 
,*t, their parts, for long flights ; and it is remarked 
niitrrations, they observe a wonderl'ul order and 
the 
Illy . "‘vir migrations, they observe a ’ 
? 0 f . fly in troops, and steer tlieir course, without the_ 
Hlg^ '^otBpass, to vast unknown regions. The flight ot 
M iq ill 3 wedge-like figure, has often been observed ; 
^’een noticed that the three ibremost, who are the 
retreat behind, and are relieved by others, who 
' ^Uf'ceeded by the rest in order. At the approach 
i tkir ducks and cranes of the north fly in quest 
1 ^‘‘''nurablo climates. They all assemble, at a 
''tt. d'')’. like swallows and quails, decamping at the same 
flight is highly curious : they generally range 
il'i in 3 iQ|,g column, like an I : or in two lines united 
(!’ liTiv''}’ a V reversed. It is observed by Shaw^ in 
that storks, about a fortnigltt before they pass 
‘^“tintry to another, constantly tesort together from 
il,^''''‘tun!jaceut parts, to a certain plain, and there form- 
,Sl a )“'-‘lve.s daily into what, in the popular phrase, is 
t'tirj 'U'uime. determine the exact time of their de- 
^ "(onie, determine the exact 
the places of their future abode. 
'tb, “tvs have often been observed, in innumerable flocks. 
'll. Vj 
rocks, and trees, previously to their departure 
,““t Britain ; and their return, in apparently equal 
been witnessed in a variety ot instances. In 
starling, finding, after the middle of summer, 
are less plentilul, goes annually into Scania, 
^ ‘ tiud Denmark. The female chaffinches, every 
“ttt Michaelmas, go in flocks to Holland j but as 
stay in Sweden, the females come back in the 
e ■ ■ 
tl|„ *^tne manner, the female Carolina yellow-hammer, 
]'“.“th of September, while the rice on which she 
; ‘ tl) ’ ^cept such as do not choose to breed any longer, 
r'lied'tnen 
tk ^ granaries, goes towards the south, and 
I? 
if(l spring to seek her mate. The aquatic birds of 
5 i,, forced by necessity to fly toward the south 
, I before the w'ater is frozen. Thus the lakes 
i], 5itt3 Lithuania are filled with swans and geese in 
jj, season, at which time they go in great flocks, 
“''y rivers, as far as the Euxine Sea. In the 
