TY  - SER
AU  -  Scott, Virgil E., 
TI  -  Cavity-Nesting Birds of North American Forests : :  
PY  - 2015///
PB  -  Project Gutenberg, 
N1  -  Public domain in the USA;  Text
UR  -  http://www.gutenberg.org/ebooks/49172
ER  -