92 WHITE— On some Pellets or Casts of a Screech Owl. 



Complete or almost so — 172. 



Partly broken up, or loose skulls — 109. 



These were presented to the Museum, and as it was con- 

 sidered desirable for Museum purposes that they should be 

 exhibited in mass, but seven complete ones were disintegrated 

 for examination. From these and from examination of pellets 

 generally, and from the loose bones, the following particulars 

 were prepared by the Entomologist, Mr. Arthur M. Lea, who 

 also received much assistance as regards the identification of 

 bone contents from the Ornithologist, Mr. F. R. Zietz, the 

 Director, Mr. Edgar R. Waite, who also identified some of the 

 bones, and Dr. A. M. Morgan identified some sterna and skulls 

 of a few doubtful specimens. The pellets were estimated to 

 contain bones of vertebrates as follows: — 



Sparrows . 160 



Starlings 16 



Musk Lorikeets 10 



*Other small birds 5 



Young Rabbits 15 



Bat 1 



Frogs 48 



Allowing, as previously surmised, that the bird ejected 

 as many elsewhere for the six months, a fair estimate for a 

 year's destruction of various pests would be: — 



Sparrows 640 



Starlings 64 



Mice 1600 



Young Rabbits 60 



In addition numerous rats and thousands of destructive 

 insects would be eaten. The bone contents of the seven disin- 

 tegrated pellets represented: — 



1. Four mice. 



2. Two mice, four frogs, and a jew lizard (AmpMbolurus 

 barbatus). 



3. Two mice and seven frogs. 



4. One mouse and one young rabbit. 



5. One mouse and two sparrows. 



6. Three mice and one sparrow. 



7. Three mice, one young rabbit, and one frog. 



Mostly Honey-eaters, 



