#1 Richard S. Bird is the author of Introduction to Functional Programming, Algebra of Programming.
#2 Richard Bird (1942– ) is the author of books on gardening.
#3 Richard Bird (1947– ) is the author of books on cars.
#4 Richard Bird (1881–1965) was the author of the "School Stories" books.
#5 Richard Bird (1894–1986) was an actor and director.