Cambridge, Mass.
1908.
Sept. 12
  Cloudless but densely hazy. Warm with light southerly winds.
  Returning to Cambridge late yesterday afternoon (6 P.M.)
I found both Carolina Wrens in the Garden. At first they
were in the lilacs whence I drove them into the Jungle
where I think they spent the night for I heard them
scolding there just as it was getting dark under the trees.
I searched the whole of our grounds for them this
morning very carefully but without success. About 10 A.M.,
however, the male sang thrice, in quick succession in 
the Jungle.
Carolina Wrens in the Garden
  As I was looking for the Wrens this morning
I came upon a little party of warblers in the
north-west corner of the Garden. There were three
Black-polls and a Yellow Warbler. The latter was a
young male in bright autumn plumage, very rich, clear
yellow on the under parts, with fine chestnut streaking
on the breast. He kept most of the time well up in
the big willow where the Black polls were, also. I
seldom see a Yellow Warbler in the Garden after
the close of August.
Yellow warbler in the Garden
  There were eight Chimney Swifts flying over the
Garden at one time last evening. They arrived in
sight only two or three minutes and then drifted off
southward. I think they must have been migrating but
I saw some here early in the week which acted like
local birds. I have not observed any at Concord
for a week or more.
Chimney Swifts.