Thishabit，accordingtoM。A。d’Orbigny，iscommontoallthespeciesofthegenus；itisveryusefultothePeruvianIndians，whousethedungforfuel，andarethussavedthetroubleofcollectingit。
Theguanacosappeartohavefavouritespotsforlyingdowntodie。OnthebanksoftheSt。Cruz，incertaincircumscribedspaces，whichweregenerallybushyandallneartheriver，thegroundwasactuallywhitewithbones。OnonesuchspotIcountedbetweentenandtwentyheads。Iparticularlyexaminedthebones；theydidnotappear，assomescatteredoneswhichI
hadseen，gnawedorbroken，asifdraggedtogetherbybeastsofprey。Theanimalsinmostcasesmusthavecrawled，beforedying，beneathandamongstthebushes。Mr。BynoeinformsmethatduringaformervoyageheobservedthesamecircumstanceonthebanksoftheRioGallegos。Idonotatallunderstandthereasonofthis，butImayobserve，thatthewoundedguanacosattheSt。Cruzinvariablywalkedtowardstheriver。AtSt。JagointheCapedeVerdIslands，Irememberhavingseeninaravinearetiredcornercoveredwithbonesofthegoat；weatthetimeexclaimedthatitwastheburialgroundofallthegoatsintheisland。Imentionthesetriflingcircumstances，becauseincertaincasestheymightexplaintheoccurrenceofanumberofuninjuredbonesinacave，orburiedunderalluvialaccumulations；
andlikewisethecausewhycertainanimalsaremorecommonlyembeddedthanothersinsedimentarydeposits。
OnedaytheyawlwassentunderthecommandofMr。Chafferswiththreedays’provisionstosurveytheupperpartoftheharbour。Inthemorningwesearchedforsomewatering-placesmentionedinanoldSpanishchart。