Vol-XXVIIJ Hess, Breeding Birds of Central Illinois. 29 



67. Stelgidopteryx sempennis. Rough-winged Swallow. — Common 

 summer resident. More abmidant than commonly supposed. Have 

 found it nesting along all our small streams. In each case I have caught 

 one of the birds on the nest, which does not extend in to so great a depth as 

 the nests of the Bank Swallows. The average length of the tunnel is only 

 nine inches while the Bank Swallow burrows often to a depth of three feet. 

 They do not nest in colonies like the Bank Swallows but are scattered in 

 single or two or three pairs. Earliest nesting, 7 eggs, May 17, 1906; 

 latest, 6 eggs, June 3, 1905. 



68. Lanius ludovicianus. Loggerhead Shrike. — Abundant summer 

 resident. Arrives March 5 to 15. Our form is the true Loggerhead, 

 migrans not ha\ang been recorded here. Earliest nesting, 6 eggs, April 

 12, 1898; latest, 6 eggs, June 3, 1907. The typical set is six although about 

 one set in ten contains seven eggs. The uprooting of our hedge-rows is 

 causing a noticeable reduction in the number of our nesting shrikes. 



G9. Vireosylva olivacea. Red-eyed Vireo. — Common summer resi- 

 dent. Arrives May 5 to May 9. EarUest nesting, 4 young. May 15, 1898; 

 latest, 4 eggs, June 4, 1907. Unoccupied nests of this bird are common. 

 I believe, through many years' observations, that they have the same 

 habit as the Marsh Wrens — that of building extra nests. 



70. Vireosylva gilva. Warbling Vireo. — Common summer resident. 

 Arrives May 2 to 10. Never seen in woodlands in tliis \'icinity, occurring 

 only in the village where it chooses the maple tree for its nests, and in the 

 apple orchards on the farms. Common in the woods along Illinois River 

 bottoms but habit reversed here. Earliest nesting, 4 eggs, June 1, 1905; 

 latest, 4 eggs, June 19, 1898. 



71. Vireo griseus. White-eyed Vireo. — Not rare summer resident. 

 I have found this vireo only in the Salt Fork timber where it arrives 

 April 25 to May 4. My only nesting record is a nest and four eggs taken 

 June 10, 1900. 



72. Vireo belli. Bell's Vireo. — Rare summer resident. Inhabits 

 only the fruit farms where fruit trees and berry thickets abound. My only 

 nesting record is a nest and four eggs taken July 4, 1899. 



73. Prothonotaria citrea. Prothonotary Warbler. — Summer resi- 

 dent. Not rare but very local along our streams. Arrives May 10 to 19. 

 Earliest nesting, 5 eggs, May 24, 1905; latest, 4 eggs, June 26, 1900. 



74. Dendroica aestiva. Yellow Warbler. — Common summer resi- 

 dent. Arrives April 29 to May 12. Never seen in woods here. Inhabi- 

 tant of orchards, hedge-rows along the highways, and occasionally nests 

 in the village. In Putnam County, along the lUinois River, I found tliis 

 warbler the most abundant breeder of the woodlands. This is another 

 habit reversal wliich I cannot account for. Earliest nesting, 4 eggs, May 

 26, 1905; latest, 4 eggs. May 30, 1890. 



75. Seiurus aurocapillus. Ovenbird. — Common summer resident of 

 the low damp woods only. Arrives April 30 to May 5. Earhest nesting, 

 5 eggs, May 16, 1901; latest, 4 eggs, May 22, 1903. 



