Doc Stealth Bird

DOC Savage sped for the stone city. It lay only a few rods away. He haunted low tropical vegetation to the first stone-paved street. Among the houses he glided.

So quiet was his going that wild tropical birds perched on the projecting stone roofs of the houses were unfrightened by his passage; no more scared than had he been the bronze reflection of some cloud overhead.

- The Man of Bronze (1933) Chapter 19