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IOWA ACADEMY OF SCIENCE 
broke in the parent’s beak. On this occasion the part retained was 
devoured and the remainder picked carefully from the nest and carried 
away. During the day the excreta was removed from the nestlings 36 
times; 20 times by the female and 16 by the male. Out of the 16 times 
the male devoured the package 11 times and carried it away 5 times 
and the female devoured it 5 times and carried it away 15 times. Out 
of a total of 36 the excreta was removed 33 times from the bird last fed 
and 3 times from some other bird. Thus confirming the previous observa- 
tions on this point. 
