ZOOLOGY. 371 
in another instance in an ironwood bush. The red-vented thrush 
is very shy, hard to observe, restless and quick in its movements. 
It appears to prefer damp, shady localities near water courses, and 
confines itself principally to spots where the wild currant is abun- 
mt. At present [Mar. 27], it appears to feed principally on in- 
sects. Its flight is short— only long enough to enable the bird 
to reach the next clump of bushes. It seems to have more 
frequent recourse to running than to flying, and dives through the 
densest undergrowth with great facility and swiftness. The usual 
number of eggs laid by this bird (strange as it may appear) is 
only two, of an emerald green color, and unspotted. The first set 
I found [Mar. 22] contained small embryos, the third [next day] 
Was only a single egg with a very large embryo; it was broken, 
and must haye been laid as early as the tenth of March. From 
the number of nests taken it would appear that this bird is 
common; but this is by no means the case, and I believe I have 
found every nest of it on the Rillito. I never saw the bird along 
the Santa Cruz River, near Tucson, or in any other part of the 
Territory where I have been, including a good portion of the Salt 
River and Gila country.” Lieutenant Bendire is evidently ob- 
serving and collecting with zeal, industry and discretion, in an 
Interesting and little-worked field. Important results are to be 
anticipated from his labors, and I am sure that other ornitholo- 
join me in wishing him abundant success. — ELLIOTT Coves. 
_ ISTELLIGENCE IN Monkeys. Ihave two species of Cebus in my 
Study, C. capucinus and a half grown C. apella. They are 
$ Jack” and “Jim,” and a friend inquires whether they are not like 
the James and John of scripture, sons of Cebide (ee)? Jack 
displays a thousand traits of monkey ingenuity. He is an admi- 
rable catcher, seldom missing anything from a large brush to a 
stain, using two hands or one. His cage door is fastened by two 
