. . d fine. THE BLACK-THROATED GREEN WARBLER* Not the least among the birds that assist man in his war-fare upon insect pests are our beautiful and active warblersthat frequent the foliage of trees and shrubs, patiently gath-ering their insect food. One of these is the Black-throated Green Warbler ofour illustration. If we desire to examine its habits, exceptduring the period of migration, we must visit the forestsof cone-bearing trees in the Northern woods of the easternUnited States, in the Alleghany Mountains, and from thesepoints
. . d fine. THE BLACK-THROATED GREEN WARBLER* Not the least among the birds that assist man in his war-fare upon insect pests are our beautiful and active warblersthat frequent the foliage of trees and shrubs, patiently gath-ering their insect food. One of these is the Black-throated Green Warbler ofour illustration. If we desire to examine its habits, exceptduring the period of migration, we must visit the forestsof cone-bearing trees in the Northern woods of the easternUnited States, in the Alleghany Mountains, and from thesepoints northward to Hudson Bay. It is almost useless toseek this bird in other places. Here, high up in the cedars,pines, and hemlocks, in cozy retreats far out on the branches,it builds its nest. The foundation of the structure is offine shreds of bark, fine dry twigs of the hemlock, bits offine grass, weeds, and dried rootlets, intermixed with mossand lined with rootlets, fine grass, some feathers and horsehair. The nests are usually bulky and loosely 436 GREEN WARBLER. (Dendroica virens). Life-size. OOPYBIGMT ■ UFORO, CHICAGO
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectnaturalhistory, booky
