Grouping" within this group seems so impracticable that a 

 treatment of the species separately in systematic order would 

 appear more desirable. 



Black and White Warbler. Mniofilfa varia. b'8(i. 



The migrating song of this warbler is a thin, wiry sibilant 

 of repeated single syllables, or a series of double syllables, 

 ending, in both cases, with two shorter syllables. The one 

 typ>e is well represented by the syllables tse tse tse te te: the 

 other by ki-tse ki-tse ki-tse se sc. Not seldom the performance 

 seems to consist of a series of closely connected syllables, like 

 " i-]it'-a-wee-a-u>ce-a-u>cc '' ( Bums). The accent on the syllable 

 " wee." In every double syllabled .song the accent is on the 

 second syllable. 



Apparently the migrants .sing but little and then fitfully. 

 Some .seasons none are heard singing at any time. It is one 

 of the last warbler songs that most of us are likely to learn, 

 unless the circumstances be more than usually favorable. 

 According to Nuttall the latter, presumably the breeding, 

 .songs are decidedly mellowed and somewhat resemble some 

 .songs of Redstart. 



During the migrations the birds are to be found in con- 

 siderable numbers in almost anj- .sort of woods, as well as in 

 village and city parks and tree lined streets. The)^ are not 

 found we.st of the Plains, but are birds of the eastern United 

 vStates. 



Blue -"winged Warbler. Hchuiufhophila pinus. (541. 



The ordinary call .song of this species has a decided 

 insect quality. He seems to inhale a shrill zre-e-c-e-e-e and 

 immediately exhale a buzzing z^ve-r-e-e-c-e, the whole perform- 

 ance comprising a perfect double run thru about half an octave 

 of the scale. Often it seems to be a .simple zive-e-e-e-e-e ze-e-e- 

 e-e-e^ the latter part merely a .sputter. At its best the song is 

 a drow.sy, locu.st-like .shrill, belonging rather to mid-summer 

 than to spring. 



There is another .song which is usually given during the 

 early summer months, but which I have heard shortly after 

 the arrival of the bird in the last days of April or the first 

 davs of Mav. This son<r is far more varied and has a far 



