Cryptic msg for étude Brute – 2

Another riddle:

Why do certain species of thrush, especially robins and bluebirds, tend to be Protestant rather than Roman Catholic?

Down.

Down.

Down.

Down.

Down.

Most futuristic novels seem out-of-date after a decade or two, but That Hideous Strength is more timely today than when the book was published in 1945. On the day I began to reread the book for this essay, the press reported that a British government agency called the Human Fertilization and Embryological Authority (HFEA) is sounding out public opinion about the use of Pre-implantation Genetic Diagnosis, which will allow parents to screen their embryos for genetic defects. Critics believe that the HFEA has already decided to go full steam ahead with the procedure, and they don’t believe the Authority’s assurances that this technique (and others to follow) will be used only to screen for genetic diseases like cystic fibrosis and not to produce “designer babies.” – Phillip E. Johnson

The above quote might spark your interest to read That Hideous Strength by C.S. Lewis and it moves the answer far enough down to not show in the masthead.

Answer:

They prefer a diet of worms.