. Handbook of birds of eastern North America . te which seems to be peculiarly its own, a very abrupt, double-syllabled utterance with a rising inflection, which comes in with thegeneral song at irregular but not infrequent intervals. I have also onone or two occasions heard the male when in pursuit of his mate uttera soft pseiio, similar to that sometimes used by Vireo ohvaceus, andboth sexes when excited or angry have a harsh, petulant note exactlylike that of V. gilvus (Bull. Nutt. Orn. Club, v, 1881, p. 5). 627. Vireo gilvus ( Vieill.). Warbling Vireo. Ad.—Upper partsashy olive-green; no w
. Handbook of birds of eastern North America . te which seems to be peculiarly its own, a very abrupt, double-syllabled utterance with a rising inflection, which comes in with thegeneral song at irregular but not infrequent intervals. I have also onone or two occasions heard the male when in pursuit of his mate uttera soft pseiio, similar to that sometimes used by Vireo ohvaceus, andboth sexes when excited or angry have a harsh, petulant note exactlylike that of V. gilvus (Bull. Nutt. Orn. Club, v, 1881, p. 5). 627. Vireo gilvus ( Vieill.). Warbling Vireo. Ad.—Upper partsashy olive-green; no wing-bars; wings and tail edged with the color of theback; first primary veryshort, not more than TOOin length; under partsAvhite sligMly washedwith yellowish. L., 5-80 ;W., 2-85 ; T., 2-14; B. fromj^ .gQ Fig. 92.—Wing of Warbling: Vireo, to show short first ■ ■ primary. Range.—North Amer-ica ; breeds as far north as the Hudson Bay region; winters in the , rather common S. K., Apl. 28 to Sept. 10. Sing Sing, tolera-. 330 VIREOS. bly common S. E., May 3 to Sept. 18. Cambridge, common S. R., May 10 toSept. 25. Nest^ pensile, of grasses and plant libers, lirmly and smoothly interwoven,lined with line grasses, suspended from a forked brancli eight to forty feetup. Eggs^ three to four, white, with a few specks or spots of black, umber,or rufous-brown, chiefly about the larger end, 76 x 55. Unlike its cousin, the Preacher, the Warbling Vireo is not gen-erally distributed, but shows a decided preference for rows of shadetrees, particularly rows of elms. It passes the greater part of its timein the upper branches, and is more often heard than seen. Although resembling the Red-eye in general appearance, its songis so different that singing birds need never be mistaken for that spe-cies. Instead of the Red-eyes broken, rambling recitative, the songof the Warbling Vireo is a firm, rich, continuous warble with a singu-lar alto undertone. 628* Vireo flavifrons Vie
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