Pro^ne sub is . 
Waynes bur y 
1900. 
( No . 2 ) . 
, Pa. 
do with them this spring is puzzling me. Nearly 150 pairs 
will return and as I have but 104 nesting compartments you 
can realize the situation. Gould put up another house, but I 
already have three, besides our other buildings, on a square 
of ground 190 feet by 200 feet, in the busy part of the town. 
I am very sorry that X find myself surrounded by obsta- 
cles just when the colony becomes intensely interesting - 150 
pair would rear nearly or quite 500 young, ’which would make 
a colony of 800 birds, and after making due allowance for 
death, etc., 300 or more nesting pair could be counted upon 
for 1901, and again the increase. would be enormous, as they 
would produce between 1000 and 1200 young. 
