f Calliparopa . 
Situated on the Bolivian Railway,about midway between th^ 
stations of Poopo and Pazha. The Railway follows along tl 
the east side of Lake Poopo from the Station Poopo 
south to below Challapata, altitude 12,150 feet. 
m 
At this point the Railway is about three miles 
back from high water-level of the lake and there are two 
high hills between the line and the lake,surrounded by 
nearly flat' country. The terrain slopes back gently 
from the lake,usually for a distance of about 5 miles, 
then rises rather steeply in a range of low mountains 
from 2,000 to 2690 feet above the lake. The valleys whicl 
open but of this range of hills are usually steep sides, 
with much rocky outcroppig. The bottoms are narrow,but 
contain quite an amount of low shrubbery and bushes, 
while the slopes are thickly dotted with bunch grass. 
The shrubbery of the valleys extends out onto the 
plain for some distance,but between the valleys there 
are few or no laHsdmx shrubs,merely grass and low bushes. 
Birds were much more abundant here than at Gatavi 
and Llallagua,that is,individuals. Some species taken 
at Llallagua were not found here,due,probably to the 
lower altitude,while quite a number of species were 
present here,which were not seen at either Catavi or 
Llallagua, The following land birds were added to the 
list here/ Spizitornis parul us: upucerthia ruficauda : 
^y Gallinago paraguavae -. Metropeiia 1 eucoptera : bo thura 
maculosa agassizii :unknown i< inch tiMo.ll592j l/iU3Cisaxicola 
atriceps i?j; Agriornis microptera andecola . 
Birds were gradually acquiring better plumage,espec¬ 
ially the Fringillidae .although very few or none had as y 
yet completely finished the post-nuptial moult. 
Purnariidae (except birds of the year) were mostly in 
full,fresh plumage,as well as Tyrannidae . 
The water level of the Lake was unusually low for the 
time of the year. There had been two successive rainy 
seasons with very little precipitation, 9 ,nd although the 
rains end in April (and this was May 30th .) the water 
level was almost as low as at the end of the dry season 
in ordinary years. The water of the lake is very shallow 
on the east side,the middle and western side being deeper 
The water had retreated about a mile from high water 
level,then followed another mile of mud,covered with 
from one to 6 inches of water;then another mile of water 
not more than 2 -^ feet deep anywhere,which was thickly 
choked with three species of water weed. The boats uded 
on the lake by the Indians are of two types,the ordis 
nary cigar-shaped,"balsa”,made of. rushed and a small 
flat-bottomed,box-like boat made of boards. The former 
are very cranky and will carry onl^ two persons and 
are very easily capsized. The latter are mostly small, 
about 8 feet long by 4 feet wide,with a bluntly pointed 
