148 Cincinnati Society of Natural History. 
12th, after which time they become less numerous. Specimens taken 
on the latter date had began to assume the pinkish-buff of the breed- 
ing plumage. 
Family Sytvicoripa: American Warblers. 
13. PARULA AMERICANA, Bp.—Blue Yellow-backed Warbier.—An 
exceedingly common species after March 25th, frequenting the thickets 
and woodland about the borders of plantations, being seldom seen 
farther than thirty feet from the ground. It gave utterance at times, 
to a faint “tchip,”’ but its song, which is heard throughout the day 
might be mistaken for that of the Cerulean Warbler, possessing, how- 
ever, a tinge of the ‘‘ wheezy’’ character of the note of Helminthophaga 
pinus. By the 15th of April their numbers had perceptibly diminished. 
14. DenpR@ca astTiva, Baird.—Summer Yellow Bird.—Common in 
the willows and shrubbery about open grounds. April 10th to 15th. 
15. DENDR@CA CZRULEA, Baird.—Cerulean Warbler.—-Present in lim- 
ited numbers from April 14th to April 17th. 
16. GEOTHLYPIS TRICHAS, Cabanis.— Maryland Yellow-throat.— 
Abundant in the thickets and weedpatches along canal and ditch banks 
from March 25 until our departure. 
17. IcreRIA VIRENS, Baird.— Yellow-breasted Chat.—First observed 
April 15th. 
18, Mytopiocres mitratus, Aud.—Hooded Warbler.—First taken 
March 30, after which it was several times observed in swampy 
thickets, keeping near the ground. 
Family VirEonipz&: Véreos or Greenlets. 
19, VIREOSYLVIA OLIVACEA, Bp.—Red-eyed Vireo. A few only ob- 
served, the species being evidently much less common here than in 
Ohio. First taken March 30th and still present April 15th. 
20. VIREO NOVEBORACENSIS, Bp.—-White-eyed Vireo,—An exceed- 
ingly common species in the woods and thickets bordering plantations, 
its unique notes being heard throughout the day so incessantly as to 
become tiresome. : 
Family Lanipz: Shrikes. 
21. Lanrus Lupovicranus, Linn.— Loggerhead Shrike. —Several 
specimens observed, showing their usual partiality for “Thorn” trees. 
A female taken March 23, shows a quite evident tendency to transverse 
waving of the ashy-grey of the pectoral region. 
