http://book.klll.cc/ebooks/author/47973.opds?sort_order=title 2025-11-15T10:59:21Z Books by Singer, Arthur Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-15T10:59:21Z https://en.wikipedia.org/wiki/Arthur_B._Singer See also: en.wikipedia 2025-11-15T10:59:21Z https://book.klll.cc/ebooks/49172.opds Cavity-Nesting Birds of North American Forests Virgil E. Scott, Keith E. Evans, David R. Patton, and Charles P. Stone