Watchbird
Waatchbird books, 1940s. a series of books about manners training with a "watchbird" stickfigure as the theme carrier
Try Munro Leaf's Manners Can Be Fun, 1936.
Also by Leaf -- Fly Away, Watchbird! : a picture book of behavior, Munro Leaf, Frederick A. Stokes, 1941.
From the foreword from Flock of Watchbirds: "This Flock of Watchbirds was rounded up from old favorites that first flew through the pages of The Ladies Home Journal. They were put together before the war in three separate books Watchbirds, More Watchbirds, and Fly Away, Watchbird, but here they are now all in one flock to watch some of the regulars who are always with us -- like the Thumb-Sucker, the Show-Off, the Bed-Bawler who screams at bedtime, the Nail-Biter, Won't-Wash, and thirty-one others that could be removed to advantage from every home."
#G116--Good Manners Watchbird: Evidently "This is a watchbird watching" appeared as a series of newspaper cartoons published around 1945-1950, as when my mom babysat she used the phrase to terrorize one of her young charges.
http://w1.loganberrybooks.com/solved-w.htmlI remember reading these in Granny's Ladies' Home Journal.