[1]Dr Francis H. Herrick, author of “The Home Life of Wild Birds.”
[2]A still better plan for lowering a martin house is described on page
127.
[3]These dimensions have been accepted and approved not only by my own
bluebird neighbors, but by a bluebird pair reported in _Bird Lore_
for July-August, 1916, as having nested in a cemetery, in an earthen
jar that lay upon its side on a grave. The report goes: “The jar
measured five inches across the bottom and about seven inches in
length.” There it is: five by seven!
[4]Chas. R. Wallace of Delaware, Ohio, in _Bird Lore_, March-April,
1915, p. 128.
[Illustration: Endpaper]
[Illustration: Endpaper]