50 The Wilson Bulletin^ — No. 83. 



The nest of this yellow warbler, Dendroica crstiva ccstiva 

 (Gmelin), was built about two feet from the ground in a 

 buck bush, or wolf berry bush, {Symphoricarpos accident alls 

 Hook), which was located on the south slope of a narrow, 

 winding ravine. In the vicinity of the nest the oak trees 

 were few and scattered as compared to the dense wood far- 

 ther down the ravine. The soil was black and fairly moist, 

 crumbling very readily. A dense vegetation grew on the 

 slopes and in the bottom of the ravine. The plants named in 

 the following list were found growing within a radius of fif- 

 aeen feet from the nest: House Mint (Monarda mollis h.)} 

 Tall Meadow Reu (Thalictrum polygamum ]\Iuhl.). Cup 

 Plant {Silphium perfoliatuni L.). True Solomon's Seal 

 ( Polygoiiatuin conimutatnm (R. & S.) Dietr.). False Solo- 

 mon's Seal {Smilacina racemosa (L.) Desf.). Virginia 

 Creeper (Psedera quinqiiefolia (L.) Greene). Poison Ivy 

 {Rhus toxicodendron L.). Plum Tree (Primus sp.). Sun 

 Flower (Heliopsis scahra Dunal). Strawberry (Fragaria vir- 

 giniana Duchesne). Meadow Parsnip (Thaspiuin aureimi 

 Nutt). Anemone cylindrica Gray. Golden Rod, Stinging 

 Nettle, Ash (seedling), and a grass. 



The nest was found on June 21, and was well concealed 

 and shaded by the neighboring plants. It was built into a 

 fork of the bush and anchored with some white cord which 

 was twined around the supports. The foundation of the nest 

 was built of interwoven coarse straws, and was lined inside 

 with soft down mixed with hair. 



There were three eggs in the nest when first seen on June 

 21. The nest was visited shortly before noon on the follow- 

 ing day and it was then found that the fourth and last tg^ 

 had been laid. The nest was visited daily, with one excep- 

 tion, from this time on until the hatching, when the regular 

 observations began. 



On June 28 the blind was erected south from the nest at a 

 distance of about two rods. On each succeeding day, except 



^I am indebted to Mr. H. S. Doty for the identification of the 

 plants in this list. 



