Back in 1990s, the most frequently banned books in schools and public libraries were classics such as "Catcher in the Rye," and "Of Mice and Men."

This year none of those even made the the top 10 as, for the third year in a row, the ire of the righteous is instead pointed firmly at a picture book about penguins -- gay penguins.

Objections to "And Tango Makes Three," which is based on the true story of two male penguins raising a chick in the Central Park Zoo, included that it was "anti-family," "anti-religion," "unsuitable for the age group" and "anti-ethnic" (huh?).

The book's critics are also upset that the book doesn't depict the real-life ending, in which the male penguin couple eventually separated because one of the bachelor penguins caught the other with a female.

Maybe the book's authors are saving that final twist for the sequel. Although we're not sure how they're going to make that an appropriate "kids" book.Here are the top 10 most banned books of this year, according to the American Library Association:

1."And Tango Makes Three," by Justin Richardson and Peter Parnell
2. "His Dark Materials" trilogy, by Philip Pullman
3. "TTYL; TTFN; L8R, G8R" (series), by Lauren Myracle
4. "Scary Stories" (series), by Alvin Schwartz Bless Me,
5. "Ultima," by Rudolfo Anaya
6. "The Perks of Being a Wallflower," by Stephen Chbosky
7. "Gossip Girl" (series), by Cecily von Ziegesar
8. "Uncle Bobby's Wedding," by Sarah S. Brannen
9. "The Kite Runner," by Khaled Hosseini
10. "Flashcards of My Life," by Charise Mericle Harper