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seen, the Tarlsty of vogotablo foods here Is sm&ll though the species present 
are found in abundance. It is probable that other speolos of iioportanoe 
fomerly grew on the lake shores but tiiat they have been Killed out by graa- 
ing stock. 
There wore many snails (see specimens] in the lakes and the usual 
foBDs of animal and iiisoct lifo were abundant. Obuervatlon revealed noth-. 
Ing of eopeoial intorost in these howovor. 
GhliEKAL DlSOUSSlOh . 
The small number of breeding duoks found in this Chusoa itountaln lake 
area was disappointing but as has been pointed out conditions were highly 
unfavorable for them. It was sddd that a good manj' duoks were present here 
in fall during the migration and this is probably time. Pood would be 
fairly abundant then and the birds are not hunted as the Ravajos do not kill 
birds and White men do not enter this region save at long intervals so that 
hunting is practically unknown. What few ducks 1 saw were very tame and per- 
mitted a close approach. A small nxunber of drakes that have bred elsewhere 
•- 
;> 
come in hore for summer, and females and young probably Join them later. There 
is not much available cbver however so that the niunber of ducks that undergo 
the mole here cannot be very large. 
1 saw very few signs of natural enemies and only occasionally were 
coyotes heard howling. It is probable however, that ooyotes are more com- 
mon than this would indicate, but that at this season they are dopind in the 
canyons bordering the toesa. as the Havojo herders complained of losses a- 
mong their sheep. The forest all over the top of the is entirely o- 
pen and devoid of undergrowth of any kind so thi.t there is little or no 
cover, dhottld food he abundant about the lakes, however, coyotes and other 
