422 Henry Durnford’s last 
Woodpecker, pretty common, one shot; has a loud whistling 
note. 
Crested Sparrow, common, goes in flocks like Zonotrichia 
pueata ; one shot. 
Humming-bird, long-tailed, seen in the monte this 
morning. 
June 9. I took a walk along the river, but had to return, 
owing to rain, which fell slightly all day. There is nothing 
interesting in Rosario; the nearer one goes to the Sierras the 
thicker the woods become, which seems to be the rule every- 
where here. 
Machetornis rivosa, one skinned, common in flocks ; spends 
most of its time on the ground. Synallaxis, one shot; the 
northern representative of S. major of Buenos Ayres; un- 
common ; makes a large nest of sticks, with hole in one side; 
loud and screeching note. 'Toucans come as far south as this. 
Several persons have described the bird to me as existing in 
the monte, but I have not seen it. 
June 10. ‘Today we have had almost incessant rain, and 
I have hardly been able to do any thing. At one o’clock, 
however, I took a horse and rode with a man I met with here 
to Agua caliente. This hot spring is on the side of a hill 
which forms part of a Sierra running about N. and 8. The 
ridge of the Sierra is low, and distant about five miles S.E. 
from Rosario. The water issues from various points, in some 
places very hot (too hot for the hand), in others warm only, 
and in others cold. It comes with considerable force, and 
runs all the year. Many persons afflicted with the chuchu 
and other diseases come to these springs in July and August, 
for which it is said to be a very good cure. The rocks here 
are porphyry and a kind of granite. I have brought a 
sample. The cleavage is about EH. and W. 
Humming-bird, long-tailed, very numerous by the hot 
spring. 
Little Blackbird (same as in Chuput) common by the river. 
Little cinereous Plover (same as in Buenos Ayres), a few 
seen by the river. 
Junell. Left Rosario this morning about eleven, traversed 
