188 FAUNA OF NEW ENGLAND. 



PASSERES. OSCINES. 



MNIOTILTIDAE. 



May 1-Sept. 30 (Nov. 28, 1891, Cambridge). Eggs, May 20- 

 June 14. 



R. I. ^ Common summer resident. (April 17, 29) May 1-Sept. 

 Eggs, May 25-June 4. 



Coxx. — Common migrant and summer resident. (April 30) 

 May 1-Sept. Eggs, May 20-June 30. 



346. Dendroica caerulescens (Gmelin) Baird. 



Black-throated blue warbler. 



Chapman, Warblers No. Amer., 1907, p. 133, pi. 9, fig. 1-3. 

 Egg, Capen, 1886, pi. 4, fig. 1. 



Motacilla caerulescens Gmel., Syst. nat., 1788, vol. 1, pt. 2, p. 



960. "IX IXSULA S. DOMIXICI." 



Thickets and forest undergrowth; nests near the ground. 



Me. — Common migrant, and less common summer resident . 

 May 4-late Oct. Eggs, June 10. 



N. H. — Common migrant, and from White Mts. north a less 

 common summer resident, becoming rare and local south. May 10- 

 Oct. 10. Eggs, June 19. 



Vt. — Uncommon summer resident in northern part. May 5- 

 fall. 



Mass. — Common migrant and at higher elevations of western 

 part (Gran\dlle, Russell, and north) a less common summer resi- 

 dent. May o-June 3; summer; Aug. 26-Oct. 11 (Nov. 3, 19). 



R. I.— Uncommon migrant. May 14-22; fall-Oct. 17. 



Coxx. — Common migrant and rare summer resident (Eastford, 

 Litchfield). (April 29) May lO-summer; Sept.-Oct. 19. Eggs, 

 Jime 6-13. 



347. Dexdroica coroxata (Linne) Gray. 



Myrtle warbler; Golden-crowned warbler; Willow warbler; 

 Yellow-rumped warbler. 



Chapman, Warblers No. Amer., 1907, p. 141, pi. 10, fig. 1-3. 

 Egg, Capen, 1886, pi. 4, fig. 2-4. 



