94 



THE WINTER FOOD OF THE CHICKADEE 



cent, of undetermined vegetable matter. In addition there were 9 per 

 cent, of aphid eggs, an equal ratio of adult insects, and 8 per cent, of 

 insect larvae. The second had eaten even less that morninsf, there 

 being only a few skins of aphid eggs, and the rest of the material con- 

 sisting of bud scales and undetermined vegetable matter. 



TABLE I.— FOOD OF THE CHICKADEE. 



Months. 

 No. of specimens each. 



Sum- 

 mary. 



Kinds of Food. 



+3 . 

 1=1 ® 





Arthropoda (undetermined) 



Insecta " 



Insect eggs " 



insect larvae " 



Coleoptera " 



Scolytidae 



Carabida; 



Tenebrionidae 



Clir^^somelidae 



Curculionidse 



Larvae 



Lepidoptera (undeterm'd) 



Eggs 



Anisopteryx pometaria. 



Clisiocarnpa 



Larvae (undetermined). 



Carpocapsa pomnnella^ 



Pupae (undetermined).. 

 Diptera 



Larvae 



Puparia 



Hemiptera (undetermi'd) 



Jassidae 



Coccidae 



Eggs (Reduviidae) 



(Aphididae) 



Hymenoptera 



Cocoons 



Spiders 



Eggs 



Vegetable matter (undeter- 

 mined) 



Buds and bud scales.. ... 



Sumach fruit 



Seeds 



Lichens 



Insect excrement (?). 



Spiders' silk 



Undetermined 



Summary. 



Insecta 



Arachnida 



Vegetable matter 



Extraneous " 



Undetermined matter. 



.85 



.01 



.02 



.02 



.10 



87 



.02 

 .01 

 .10 



.04 

 .05 



.04 

 .04 

 .01 



.70 



.11 



88 



.01 

 .11 



.03 



.01 



.01 



.03 



.03 



.05 



.56 



.03 



.01 



.24 



16 



4 

 13 



.02 

 .01 



.01 



.01 

 .01 

 .01 

 .06 

 .06 



.01 



.01 

 .35 



1 



5 .03 



4 .03 



1 ' 

 9 

 4 

 3 



.10 

 .05 

 .01 



2 

 15 



.59 

 .09 

 .24 



.09 

 .01 

 .12 



56 

 6 

 .16 

 .09 

 .12 



3 



4 

 1 

 2 

 2 

 8 

 1 

 6 

 2 

 4 

 1 

 1 

 2 

 1 

 2 



14 

 1 

 3 



11 

 4 



5 

 15 



7 

 1 

 2 



9 

 20 



.01 

 .03 

 .02 

 .04 

 .04 



.0.? 

 .10 



.01 

 .01 

 .06 

 .01 

 .02 

 .01 

 .02 

 .01 



.01 



.01 

 12 



.02 

 .06 

 .03 



.04 

 .10 

 .07 



.02 

 .10 



58 

 9 

 .21 

 .02 

 .10 



4 

 12 

 11 



7 



8 



1 



2 



1 



1 



2 



5 



6 



5 



7 



3 

 15 



3 



w 



5 1 

 1 I 

 1 

 2 

 1 

 7 

 31 



1 i 

 4 I 



16 j 



8 j 



6 

 28 

 12 



6 



2 



6 

 11 

 41 



.005 



.03 



.015 



.02 



.02 



.02 



.02 

 .06 



.015 



.01 



.065 



.025 



.01 



.01 



.01 



.005 



.005 



.01 

 .21 



.01 

 .04 

 .025 



.02 

 .14 

 .04 

 .01 



.03 

 .01 

 .11 



57.5 



.065 



.21 



.04 



.11 



