Eeturoa fro® ell the rewords aover a wt area extending 
from western Missouri end Kansas west to (fclifornla, and from 
south era Marloo (Querrerol to Saskatchewan {see Pig* 1)« A study 
of the results Indicates one general line of flight to the nest 
* 
fro® the Salt hake thlloy to Californio, a root© followed by 
greeiwvlisged teals and shovell era and part of the oallorda and 
pintails* Another line of flight, taken by & group of birds 
that includes otemmom teals* redheads, pintails, mid m Hards, 
crosses to the 
Plains region and travels south into Tome* 
Indications are that aotao of those .last mentioned fly north and 
oast to dross the divide soparattog 
m 
Elver trm the heahwtors 
tMcJ^ htik: MbkL. ^ tSMIf -Jl 'j|L Aik. ■JSkr ^ ulffifi lift 
east of the foothills of the Bocky 
Mountains! that all follow such a rout# is doubtful, siaoo there 
is nothing to prevent a direct flight across any of the mountain 
passes* Thews is also a third general migration southward over the 
Booky Houataia Plateau, jrebably by a ooqpsratlrely nmll number of 
birds, that carri es the saoey herons and some of the ducks through 
the scattered lakes and ponds found in Utah, lav 
, and Arts con. 
