24 THE, AUDUBON BULLETIN 



deed been great had it not been for the hearty cooperation of 

 the public school and St. Peter's and Paul's School. 



The interest taken in birds here shows that as a whole the 

 people are somewhat above the average in their knowledge of 

 birds, but regardless of this, there are possible errors that the 

 laity will make any time. A few of these errors are mentioned at 

 the bottom of the tables. 



It is hard to form a questionnaire that the laity can thorough- 

 ly understand, and yet ask all of the questions a scientist would 

 desire. The following is the form of questionnaire we used and 

 the following tables show some of the results. Waterloo, ac- 

 cording to the 1920 census, has a population of 1930 people. The 

 data is based upon the report of 181 questionnaires. The ques- 

 tionnaires were based on birds nesting last season. 



Bird Questionnaire 



I Bird Houses 



1 Give number of houses on property ... 



2 How many pairs of birds will the houses accommodate? 



3 How many houses weie occupied last season? 



4 Give name and number of pairs of birds which occupied the 



houses. 



5 Give name and number of birds which reared more than one brood 



last year. 



6 Remarks : 



II Nests not in bird houses. 



1 Give name and number of pairs of birds nesting (not in bird 



houses) on your property last season. 

 3 Remarks: 



III Miscellaneous 



1 Number of cats on property. 



2 Number of English Sparrow nests last season 



3 Remarks : 



Data Secured 



Number of bird houses 363 



Number of pairs of birds they will accommodate 660 



Number of bird houses occupied last season 250 



Number of birds nesting in bird houses last season : 876 



Number of birds nesting (not in bird houses) last season 1372 



Number of birds nesting in Waterloo last season 2250 



Number of English sparrows nesting last season 928 



Birds Living in Bird Houses 



Bluebirds 54 pairs Swallows* 69 pairs 



Martins, Purple 143 pairs Sparrows, English 53 pairs 



Robins - 6 pairs Wrens 113 pairs 



Birds Rearing More than One Brood 



In Bird Houses Out of Bird Houses 



Bluebirds 22 pairs Bluebirds 1 pair 



Martins 4 pairs Brown Thrashers 2 pairs 



Robins 1 pair "Robins 24 pairs 



English Sparrows -17 pairs English Sparrows 53 pairs 



Swallows* - 14 pairs Swallows* 2 pairs 



Wrens 30 pairs Wrens - 3 pairs 



Chipping Sparrows 2 pairs 



