42 BULLETIN OF THE NUTTALL 



The following species, although not new to the State, are still 

 imperfectly known as residents of Illinois. The quotations, as in 

 the preceding list, are from the notes of Mr. Ridgway. 



1. Protonotaria citraea, Baird. Prothonotary Warbler. — Rare 

 summer visitant to the northern portion of the State. Two specimens 

 were taken near Chicago during the summer of 1875. 



2. Siurus ludovicianus, Bon. Large-billed Water Wagtail. — 

 Quite abundant, and breeds in the northern portion of the State. 



3. Oporornis agilis, Baird, Connecticut Warbler. — Contrary to 

 the generally received statements, this species is as abundant during the 

 fall as in the spring migrations. They were quite common the 1st of Sep- 

 tember, 1875, in the Calumet Marsh. 



4. Myiodioctes mitratus, Aud. Hooded Flycatching Warbler. 

 — A rare summer resident in the northern portion of the State. One speci- 

 men was taken May 10, 1875, near Chicago, and a second specimen near 

 Waukegan, 111., May 20, 1876. 



5. Vireo belli, Aud. Bell's Vireo. — This species was abundant in 

 the dense bushes bordering the ravines intersecting Fox Prairie, Richland 

 County, 111., August 9 to 15, 1875. They were exceedingly shy, and al- 

 though several could be heard uttering their curious song at the same time, 

 and repeated efforts were made to secure them, only two specimens were 

 obtained. I have since examined a specimen of this species shot in the 

 vicinity of Chicago, in June, 1875, and further search will doubtless reveal 

 their presence throughout the State. 



6. Plectrophanes pictus, Swains. Painted Lark Bunting. — The 

 last of March, 1875, near Calumet Lake, I found a flock containing about 

 seventy-five individuals of this species. Their habits were quite similar 

 to those of P. lapponicus while upon the ground, except that while the 

 latter species preferred the wet portions of the prairie, the former were 

 found only about the higher portions. When flushed they invariably 

 uttered a sharp clicking note, rapidly repeated several times. When 

 driven from their feeding-place by my approach, they would rise in a. 

 straggling flock, and after wheeling about once or twice, start off in a di- 

 rect line, gradually rising higher, until they disappeared. After a short 

 time their peculiar note would be heard, and the flock, darting down from 

 a considerable height, would alight near the place from which they were 

 driven. Although tbe flocks of P. pictus and P.' lapponicus often became 

 mingled while flying over the prairie. I did not see them alight together. 



7. Peucsea aestivalis, Cab. Bachman's Finch. — This species was 

 quite common in the vicinity of Mt. Carmel in July, 1875. 



8. Buteo swainsoni, Bon. Swainson's Buzzard. — In August, 1875, 

 I obtained four fine specimens of this bird, an adult pair and two young, 

 upon Fox Prairie. The young were shot from the tree on the border of 



