126 
AUTUMN FOOD OF THE MYRTLE WARBLER 
i beetle ( Aphodius inquinatus) 
Flies ( Diptera ) 
8 
Insect larvae 
O 
Insects undetermined 
• 
IOO 
No. 9. 
Per cent. 
5 bayberry seeds 
64 
3 insect cocoons 
7 
Beetles ( Coleoptera ) 
4 
Flies ( Muscidae ) 
Insect larva 
7 
Insects undetermined 
'.. 6 
- 
No. 10. 
IOO 
Per cent. 
Unknown fruit 
41 
1 bayberry seed 
18 
Bugs ( Capsidae) 
8 
Flies ( Diptera ) 
4 
Insects undetermined 
29 
IOO 
No. 11. 
. Per cent. 
2 bayberry seeds 
Beetles ( Aphodius inquinatus) 
9 
Bugs ( Cap si dae) 
13 
Flies ( Diptera ) 
Insect larva 
4 
ioo 
The preponderance of bayberry fruit in the diet for October was well 
shown by a specimen taken at 5 p. m., the thirteenth of this month, which 
had eaten fourteen of these, five of them being found in the gullet. These 
w'ere estimated to form 97 per cent, of the total contents, the only other 
items being insect remains which were doubtfully identified as belonging to 
a small beetle — Aphodius — (.01), and a stone-fly (,02). Another specimen,, 
taken at 2 p. m. the twenty-seventh of the same month, had eaten seven 
bayberries, forming 95 per cent, of the food, a small, two-winged fly, 3 per 
cent., and undetermined insects, 2 per cent. In still another specimen, 
taken October 24, at 2 p. m., four bayberries formed 40 per cent, of the 
food, thirty-one aphides 31 per cent., six small larvae, apparently those of the 
birch leaf-skeletonizer (Bucculatrix canadensiella), 12 per cent., a mass of silk 
probably taken with the larvae, 3 per cent., two flies ( Diptera ), 10 per cent., 
one chalcis fly, 1 per cent., seven eggs ( Orthoptera ?), 1 per cent., and unde- 
termined insects, 2 per cent. 
