340 THE MOUNTAIN. 



berries part of the year, but their general food is insects. 

 Of this genus, Cassin remarks : " Of the smaller birds of 

 North America, no group exceeds that of the warblers, in 

 variety and richness of color. It is, too, one of the largest 

 of the groups of our birds, embracing not less than forty 

 species, besides several which are South American " They 

 are highly musical birds, and are somewhat allied to fly- 

 catchers, vireos, thrushes, saxicolas, and wrens. The nightin- 

 gale and robin red-breast of the Old World belong to this 

 party of vocalists. 



SYLVICOLA Coronata, (Wilson.) Yellow-crowned warbler. 

 This species arrives here in the end of April, proceeding 

 north. 



SYLVICOLA (Estiva, (Lath.) Summer yellow-bird, or 

 warbler. This is a handsome bird, ranging from the arctic 

 circles to Florida. It arrives in Pennsylvania in April, and 

 returns south at the end of September. 



SYLVICOLA Maculosa, (Lath.) The spotted warbler. 

 Breeds far north at Hudson's Bay, and is only seen a short 

 time as a traveler. 



SYLVICOLA Virens, (Lath.) Black-throated green war- 

 bler. This sylvicola sometimes stays the season on the 

 mountain, but is a rare bird. It comes in April and leaves 

 in October. 



SYLVICOLA Blackburnia3. Blackburnian warbler. A rare 

 species, and only a visitor, on its way to boreal regions. 

 It is a beautiful bird. 



SYLVICOLA Icterocephala, (Lath.) Chestnut-sided war- 

 bler. Only seen on the mountain for awhile, on its north- 

 ern journey. It is said, however, by Nuttall, to rear young 

 in the Northern States. 



SYLVICOLA Striata, (Lath.) Black-poll warbler. Some- 

 times arrives in the middle of April, remaining but a short 

 time. It extends its migrations to Newfoundland. 



MNIOTILTA Yaria, (Lath.) Black and white creeper. 

 Perhaps only rests on its journey, as its nest has not been 

 seen. It is a remarkable and interesting bird. 



