While in New York a couple weeks ago, for the antiquarian book fair, I picked up an inexpensive copy of Babes in Birdland. This is the 1911 version of Policeman Bluejay, a book written in 1907 by L. Frank Baum under the pseudonym of Laura Bancroft. As Bancroft, Baum wrote six small books called the Twinkle Tales, as well as this longer story.
The book was reprinted again in 1917, with the same title but yet another cover design, this time crediting Baum as the author. One of these days, I really need to pick up a better copy of this version!