Concord, Mass.
1907
April 9
(No 6)   
Although I realise fully the utter inadequacy of
any combinations of human words to express such
sounds as those that go to make up bird songs
like the Fox Sparrow's I am tempted to enter
here the following renderings that I noted to-day.
Peer, peer, per see per, tura-lu-leer.
Peer, peer, serwiitee (this by the bird that recalled a Towhee)
Peer, pe, peer, see ler -wee-see-lee-sud
Tu, tu-e, tu-tery-twil-der-li-ear.
Sweet, ser, sil-ser-see-tury-tua-tu
Songs of the Fox Sparrow
  Many birds put the strongest emphasis used
in the entire song on its terminal note.
  If notes other than those which pertain to
the normal song or its variations I heard the
following.
Tuck - only once all day. This is evidently a
  cry which betokens alarm or excitement.
Zee-eeep heard only a few times. This is used
  chiefly by scattered birds calling to one another.
  They were not scattered to-day.
Call & alarm notes of the Fox Sparrow
When numbers of birds were feeding together one or
more of them was almost constantly uttering a 
series of chattering, clicking and snickering sounds
so faint as to be audible only a rod or two away.
These reminded me of the sounds made by the Red
Squirrel when heard at a distance.
A bird suddenly attacked by 
another when feeding and I think
picked or "tweaked" a little uttered 
a sort of chirrup, soft and low. This
I do not remember ever hearing before.
Another sound produced by the Fox Sparrow when
feeding but less often than the snickering was
a low, vibrating chir r r r r rather harsh in quality.