84 The Wilson Bulletin — No. 79. 



for June 29, and a small part of that for June 28, does not 

 correctly represent the total feeding activity of both parents, 

 for, after the first fledgiing left the nest, one of the parents 

 would remain with it for a period of two hours or more until 

 relieved by its mate — that is, the labor of feeding was divided 

 between the nest and the departed brood. They could be seen 

 in a ravine near by attending to the fledglings, but the dis- 

 tance was too great to secure any trustworthy data. From 

 June 26 at 12 :o5 p. m. until the last young bird left the 

 nest, practically every feeding is recorded. The two morn- 

 ings when the observations commenced at 3 :30 a. m. it was 

 found that the old birds did not begin feeding till about 

 4:15, and on the morning of the 29th the parent bird was 

 still on the nest when the observer entered the blind at 4:15. 

 So from noon on the 2Gth until they left the nest three days 

 after, the nestlings were under constant observation during 

 the time of daily feeding activity. 



Table III will show something of the character of the food 

 received by the young birds during this part of the nestling 

 period and also something of the quantity. It will be no- 

 ticed that in the tabulated data given that the number of in- 

 sects was not always determined exactly but was entered in 

 this manner, " 6-|-mayflies," etc. In all such cases the min- 

 imum number was used in computing the tables. As all of 

 the persons who assisted were cautioned especially to note 

 the number of insects exactly, it is safe to assume that if 

 there be any error in the data, it is in having recorded too 

 few insects rather than too many. 



TABLE III. 



Date— June 2.3 24 



Unknown Insects G 



Larv;e 2 



Spiders 2 2 



Rai>ins. Cherry 



Unknown Worms 3 



Earthworms 1 



