gurgitative feeding. No evidence was found. ^ In all but one 

 or two visits the food was visible in the bird's beak, though not 

 always identified, of course. In the feeding process of this 

 species there is not time enough for any regurgitation. There 

 was no instaace of feeding in which the bill of the old bird was 

 not inserted and withdrawn practically instantaaeously. 



Some observers have noticed a thread of saliva connecting the 

 beaks of the parent and nestling after withdrawal of the former 's 

 bill. This saliva thread was repeatedly observed at this nest, 

 and did not in the slightest degree suggest regurgitative feeding. 



At visit No. 28 the female carried two unrecognized objects 

 (probably snails) in her beak. One was fed to Cowbird and one 

 to Blue. After each, withdrawal a thread of saliva one and a 

 half to two inches long was drawn out. The same saliva thread 

 was also noted at visits Nos. 33, 53, 81, etc. 



TABLE II 



SHOWING THE VARIETY OF FOOD, AND THE NUMBER OF 

 FEEDINGS TO EAOE NESTLING DURING THE 

 PERIOD OF OBSERVATION 



To Blue 



To White 



To Cowbird 



To ? 



Total 



"Green worms" 



19 



10 



20 



1 



50 



Spiders 



20 



14 



8 





42 



Lepidoptera 



15 



12 



14 





41 



Mayflies 



11 



11 



18 





40 



Snails 



7 



10 



8 



1 



26 



Miscellaneous larvae 



9 



7 



5 





22 



Diptera 



5 



4 



9 





18 



Probably Snails 



5 



1 



7 



1 



14 



Miscellaneous insects 



3 



1 



6 





10 



Unknown 



4 



1 



4 





9 



Grasshoppers 



2 





3 





5 



Odonata 



1 



1 



1 





3 



Harvestman 



1 









1 



Food 



Table II classifies and summarizes the food. No seeds or fruit 

 appear in the list, of course. The great bulk of the insect food 

 is such as the birds would be able to pick from the foliage of the 

 trees and shrubs. The food table shows the relative abundance 



2 The vrriter has elsewhere discussed the nature of evidence for and ag-ainst this 

 kind of feeding. See Journ. Animal Behavior, VII, 4, 1917. 



29 



