406 
NATURAL HISTORY. 
Spring and autumn visitant. Exceedingly abundant from April 25 till 
May 15. Perhaps a few breed, as we have found them the first week 
in August. In fall abundant from August 25 to second week in Oc- 
tober. Inhabits exclusively high, open woods, and usually seen in 
the tops of the trees, or at the extremities of the branches, in the 
tufts of leaves and blossoms. (. Albino obtained.) 
55. Protonotaria citrea, (Bodd.,) Bd. — Prothonotary Warbler. Ex- 
ceedingly rare; perhaps only an accidental visitor. An individual 
seen in a swampy briar patch May 2, 1861. Probably its most north- 
ern range, if regularly found here. 
56. GeotMypis trichas, (Linn.,) Cab. — Maryland Yellow- throated i 
Warbler. Very abundant summer resident, breeding in great num- I 
bers. Arrives April 25, becoming exceedingly numerous on its first 
appearance. Bemains until October. Inhabits the densest briar 
patches, generally in swampy situations. Never seen in high woods, 
seldom in orchards or hedgerows. Associates with CistotJiorus pains-, 
iris , in the Zizania aquatica marshes. Nest on ground. 
T\G . Philadelphia is undoubtedly an inhabitant of the District.] 
57. Oporornis agilis , (Wils.,) Bd. — Connecticut Warbler. Bather 
uncommon in the fall, during the month of October. Excessively 
rare in spring; we never have seen it in that season. Frequents old 
buckwheat and corn fields, searching for food among the dry, rank 
weeds; also low thickets in swampy places. 
58. Oporornis for mosus, (Wils.,) Bd. — Kentucky Warbler. Bare. 
Found chiefly in low woods with thick undergrowth, ravines, Ac. 
Very silent, but not shy. A few breed here. 
59. Icteria viridis , (6m.,) Bon. — Yellow-breasted Chat. Summer 
resident, breeding very abundantly. Arrives the last week in April, 
leaves about the middle of September. Frequents exclusively most 
dense and impenetrable briar patches. Males exceedingly shy and 
difficult to procure until the females commence incubation, when they 
are quite the reverse. 
60. Helmitherus vermivorus , (Gm.,) Bon. — Worm-eating Warbler. 
Bathen uncommon summer resident, breeding sparingly. Arrives 
first week in May, remains till third week in September. Slow and 
sedate in its movements. 
61. Helminthophaga chrysoptera, (Linn.,) Cab. — Golden- winged War- 
bler. Spring and autumn visitant. Very rare. 
62. Helminthophaga pinus, (Linn.,) Baird. — Blue-winged Yellow 
Worm-eating Warbler. Spring and autumn visitant. Very rare. 
63. Helminthophaga ruficapilla , (Wils.,) Bd. — Nashville Warbler; 
Spring and autumn visitant. Bare. 
64. Helminthophaga peregrina , (Wils.,) Cab. — Tennessee Warbler. 
Spring and autumn visitant. Very rare. 
[Our observations warrant the belief that all the Helminthophagece 
are exceedingly rare. Though the four species given have been de- 
tected, the data with regard to their arrival and departure have not 
been ascertained.] 
65. Seiurus aurocapillus , (Linn.,) Sw. — Golden-crowned Wagtail. 
Exceedingly abundant summer resident. Arrives April 12 ; for 
about two weeks keeps perfectly silent, hiding in the thickets and 
