AVERY BIRD COLLECTION 117 



have elapsed since it was finished. As a rule not less than 

 eighteen days should be allowed from the time the nest 

 is done till it is taken. 



"April 18, 1893. No. 4. The nest in the pine tree 

 proved to have a set of five eggs slightly incubated. It 

 was built on a pine limb, and so concealed as to be found 

 only by seeing the old bird take the nest. This was 

 twenty-five feet from the ground and seven and a half 

 feet from the axis of the tree. 



"External width of nest 2.90 inches; internal width 

 1.65 inches; external depth 3.00 inches; internal depth 

 1.70 inches. Material : strips of bark and straw on the 

 outside, attached to the limb of the pine by a substance 

 resembling spider web and giving the nest a grayish ap- 

 pearance externally; inside of nest lined with hairs, ap- 

 parently of the cow, and with feathers. 



"April 20, 1893. No. 5. A yellow-throated warbler 

 was discovered building her nest this afternoon in a sweet 

 gum. The nest is completely concealed in a bunch of 

 moss and is at least fifty-five or sixty feet from the 

 ground, and on the end of a limb. The male and female 

 were observed feeding together; they visited several 

 bunches of moss ; at last they both flew high up to a moss 

 covered branch and disappeared in the moss; the male 

 then left his companion, and she was observed many times 

 to dart to the earth and return to the bunch of moss. It 

 was evident after she had many times flown to and from 

 the moss that she was building. 



"April 24, 1893. No. 3. No. three's nest (D. dojiiin- 

 ica) was taken this afternoon. It contained four slightly 

 incubated eggs. Nest was on the horizontal limb of a 

 sweet gum, 26 ft. from the ground and 9 ft. from the 

 body of the tree. 



"The parent remained on the nest till she was shaken 

 from it by the jarring of a pole on the limb. This nest 

 was found on the evening of the 10th ; it was taken on the 

 24th, just fourteen days from the time it was first dis- 

 covered. The bird was last seen building on the 12th ; 

 she was then lining the nest, as I saw her carrying a 

 large feather in her bill. 



