The Plover and the Clover can be told apart with ease,
By paying close attention to the habits of the Bees,
For en-to-molo-gists aver, the Bee can be in Clover,
While ety-molo-gists concur, there is no B in Plover.
A1! Would click again.
There are a couple of versions of that book kicking around. My wife's parents have a pretty old one. When I was a kid we had what must have been a later edition, with more pages and more wonderful humor. Visiting the in-laws once I picked up their copy and was disappointed not to find some of my favorites.
Aha! I see, the *revised* version is here:
The additions are mostly not birds+flowers, though. For example, The Gnu and the Newt"