FOOD OF NESTLINGS. 



45 



July 18, 1898. The male parent, a bird in greenish plumage, did not 

 help to provide for the young, but appeared to think that his sole duty 

 consisted in coming to the tree occasionally and singing. The mother 

 worked incessantly. It was difficult to identify what she brought, 

 because she was so shy and remained at the nest so brief a time. I 

 had to stand close to the tree and focus the glass on her when she was 

 nervously hopping from branch to branch. Working under these 

 difficulties I was able to identify but 2 caterpillars, 3 May -flies, 2 short- 

 horned grasshoppers, and 3 meadow grasshoppers. 



House Wren. — The most satisfactory and continued observations were 

 made June 17, 1899, of some young house wrens that were about 

 three-fourths grown. In this case it was found desirable to remove 

 the nest, which was in a cavity in a locust tree, transfer it to a baking- 

 powder can, and nail the can to the trunk of the tree about 4 feet 

 from the ground. The following is a detailed account of the feeding: 



Feeding of a brood of house lorens. 



5.5 



5.56. 

 6.00. 

 6.02. 

 6.05. 



Green caterpillar {Heliothis dipsa- 

 ceus). 



May-fly. 



May-fly. 



Undetermined. 



Heliothis dipsaceus. 

 (Observations suspended till 7.20 a. m. ) 

 7.21. Undetermined. 

 7.23. May-fly. 



(Observations suspended till 7.45 a. m.) 

 7.46. Harvestman (Phalangidse). 



May-fly. 



Undetermined insect. 



Urdetermined. 



Undetermined. 



Undetermined. 



Undetermined. 



Undetermined . 



Undetermined. 



Undetermined. 



Undetermined. 



Undetermined. 



Undetermined. 



Heliothis dipsaceus. 



Undetermined insect. 



Undetermined insect. 



Brown caterpillar. 



Undetermined insect. 



Undetermined insect. 



Undetermined insect. 



Undetermined insect. 



Two May-flies. 



7.47. 



7.48. 



7.49. 



7.51. 



7.55. 



7.56. 



7.57. 



7.57J. 



8.00J. 



8.01. 



8.03. 



8. 03 J. 



8.06. 



8.08. 



8.11. 



8.13i. 



8.16. 



8.18. 



8.20. 



8.22. 



8.23. 



8.24. May-fly. 



8.29. Brown orthopterous insect. 



8.30. Heliothis dipsaceus. 

 8 35. Undetermined. 

 8.38. Caterpillar. 

 8.41J. May-fly. 



8.43. May-fly. 



8.45. Brown caterpillar (cutworm?). 



8.46. Heliothis dipsaceus. 



8.47. Undetermined insect. 



8.48. Undetermined insect. 



8.49. Undetermined insect. 



8.50. Undetermined insect. 

 8.52i Cutworm (?). 



8.55. Heliothis dipsaceus. 



8.56. Undetermined insect. 

 8.59. Pentatomid bug {Nezaraf). 

 9.03. Cutworm (?). 



9.05. Cutworm. 



9.10. Caterpillar {Acronycta oblinita). 



9.13. Brown soldier bug. 



9.17. Green caterpillar (nootuid). 



9.20. White grub. 



9.25. Clay-colored grasshopper. 

 9.25i. Grasshopper. 



9.30. Undetermined insect. 



9.37. (Two cabbage worms placed on 



edge of tin can. ) 



9.38. Acronycta oblinita. 



9.39. Heliothis dipsaceus. (Refused cab- 



bage worm. ) 



9.39i May-fly. 



