\VAR]51J'",R SONCS. 1.") 



Mourning' Warbler, licothlypix Philadelphia. (')7'.). 



In quality and style this Warbler's songs bears a strong 

 resemblance to that of Water-Thrush, the variations having 

 the same general quality, but the song is considerably less in 

 volume and lacks the wild thrill of the W^ater- Thrush. The 

 song which I have heard most frequently is tec tc-o tc-o tc-o 

 wc-sc, the last couplet accented and much higher pitched. A 

 4ess common form slighth' resembles the crcschcndo chant of 

 Oven - bird, but is weaker. It is rather a sw^ell than a 

 creschcndo. Dr. Merriam describes a variation which I have 

 never heard : true true true true too, the last and next to the 

 last syllables with falling inflection and more softh'. The .song 

 is clear and w'histling. 



Song is incessant during the northward movement, but 

 there is apparently none on the return journey. 



This Warbler frequents low brush thickets in rather damp 

 places, and appears to be solitary in its habits when migrating. 



West to the Plains, north into Canada, breeding from the 

 northern states northward. 



Olive Warbler. nendroica otivacca. ()")1. 



Very little seems to have been written of the song of this 

 Warbler. From that little one would be led to expect a high 

 pitched, melodious, liquid, whistling song, on a descending 

 scale ; the separate notes not unlike the first note in the 

 Whipporwill's lay; pos.sibly resembling the last cadence of 

 Swainson's Warbler. 



The Olive Warbler lives in the highlands of Guatemala and 

 Mexico, north into southern New Mexico and to Mt. Graham, 

 Arizona. 



The songs of the next three species bear a resemblance to 

 the clear whistles of Carolina Wren ; but the resemblance is 

 rather in the quality of the whistle than in the manner of 

 utterance. 



Yellow-throated Warbler. Dcndroiea dominica. r)()8. 



This song seems to resemble that of Indigo Bunting as 

 well as Carolina Wren, but it is wilder and more ringing than 



