BLACK-THROATED BLUE WARBLER. 



tate that, of course, by simultaneously humming and 

 whistling through the teeth. The range of voice is evi- 

 dently comprehended by a fifth interval, and commonly 

 by a fourth. There are three, four, and sometimes five 

 ascending notes to the song (commonly four), but these 

 are so closely run together i. e., slurred, that their in- 

 dividuality is lost; by lines, the song should appear 

 thus: 



In musical notation it should appear thus: 

 Jfodervfo. 



And that covers the ground, so far as type is concerned. 

 I have another common form which shows that the bird 

 is capable of variation both as to length of note and 

 expression: 



I 



Also Mr. Lynes Jones makes mention of several render- 

 ings which suggest some difference with the foregoing 

 notations, one is chweu-chweu-chweu with each syllable 

 uniform, and another is we-we-z-z-z-z-z-z with a harsh 

 and penetrating accent. But I question whether such 

 variations would cause any trouble in the identification 

 of the song; all writers seem to agree that it begins 

 pianissimo and ends with a shrill fortissimo, and it only 

 remains for me to add that it is completely off the 

 keyboard of the piano, notwithstanding its low-pitched 

 overtone. 



The Black-throated Blue is essentially a woodland bird, 

 but he frequently visits the roadside and the vicinity of 

 dwellings. He is also a fearless little fellow, compara- 

 tively speaking, not altogether free from consuming 

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