BIRDS OF BERMUDA. 181 
Sylvia flava, Vieil. 
Sylvia citrinella, Wils. 
Sylvia childreni, Aud. 
Sylvin rathbonia, Aud. 
Length, 5.25; wing, 2.66; tail, 2.25. 
Hab.—Whole of North America through Mexico and Central America 
into South America; West Indies (represented by several insular forms 
apparently not specifically distinct) (Coues). 
Mr. Bartram has two specimens in his collection obtained by himself 
at different dates. Lieutenant Denison, Royal Engineers, has also two, 
both males, shot in Devonshire Swamp on the 23d November, 1875. 
16. Dendroica virens, (Gm.) Bd. Black-throated Green Warbler. 
Motacilla virens, Gm. 
Sylvia virens, Lath., Vieil., Wils., Bp. Nutt., Aud. 
Sylvicola virens, Bp., Aud., Woodh., Reinh, 
Rhimanphus virens, Cab., Sel. 
Mniotilta virens, Gray, Reinh. 
Dendroica virens, Bd. and later writers generally. 
Length, 5.00; wing, 2.58; tail, 2.30. 
Hab.—Eastern United States to Missouri; south to Guatemala; acci- 
dental in Greenland and Europe. 
Another novelty brought to light in examining Mr. Bartram’s birds. 
He has three examples, one in the obscure plumage of youth, the others 
in the ‘‘ fall” or female plumage of the adult. 
A recent letter from Mr. Bartram contains the following: ‘“‘On the 
7th of May (1878) I shot a black-throated green Warbler showing a tri- 
angular jet-black patch under the chin and throat, length 4? inches, 
wing 24, tail 2.” 
17. Dendroica cerulescens, Bd. Black-throated Blue Warbler. 
Motacilla cerulescens, Gm. 
Sylvia cerulescens, Lath., Vieil. 
Dendroica cerulescens, Bd., Mayn., Coues. 
Motacilla canadensis, Linn. 
Sylvia canadensis, Lath., Wils., Bp., Nutt., Aud. 
Sylvicola canadensis, Sw., Rich., Bp., Aud. 
Mniotilta canadensis, Gray. 
Dendroica canadensis, Bd., Scl., and other late authors. 
Sylvia pusilla, Wils. 
Sylvia leucoptera, Wils. 
Sylvia sphagnosa, Bp., Nutt., Aud. 
Length, 5.50; wing, 2.60; tail, 2.25. 
Hab.—Hastern United States to the Missouri. West Indies. (Baird.) 
Two specimens of this striking-looking Warbler are in the Bartram 
