42 THE O. & O. SEMI-ANNUAL. 
our statements, we hope that they will be pointed out and ex- 
plained, that we may be more able to avoid them in the future. 
The range of our observations has been extensive, the three 
localities in which data have been collected being Eubanks, Ky., 
Binghamton, N. Y. and East Providence Centre, R. I. 
Mr. John B. Lewis of Eubanks, Ky., has sent in several 
reports from that locality, from which some very interesting and 
instructive deductions have been made. 
The Blue Yellow-backed Warbler or Parula Warbler ( Compso- 
thlypis americana) is a tolerably common summer resident in 
that locality. It inhabits deep forests and is seldom seen any- 
where except in the tree-tops. 
It begins to sing on its arrival in the spring, (April 6 to 10) 
and may be heard from that time till about July 3. There are 
two different songs. The first, and by far the most common, is a 
high, fine and very energetic utterance of a series of notes resem- 
bling the syllables ‘‘cher-r-r-r-r-rip.” The first syllable is very 
strongly rolled at the end, and the closing ‘‘rip” is very much 
emphasized and given a slight falling inflection. The song is 
delivered with all the vim the tiny body of the singer can put into 
it, and the closing syllable is positively jerked out. 
The second song is not uttered with sc much energy, and is by 
no means so sharp and shrill. It resembles the syllables ‘‘chee- 
chee-chee-chee-cheeah,” the syllables which are in italics are de- 
livered with more force and emphasis than the others and the Zas¢ 
syllable receives a falling inflection. 
My observations lead me to think that the first song is the one 
generally uttered during the mating season, and that the second 
form is used more frequently later in the year. It is not probable 
that the height at which the bird is perching has anything to do 
with the difference in the song, although once when the bird was 
observed near the ground it uttered the second form while in the 
low bushes, and resumed the first and more energetic form on re- 
ascending. 
The two forms do not belong to the different sexes, as the same 
bird has often been heard to utter both within less than half a 
minute. 
