Robert Williams Wood(1868–1955) · How to Tell the Birds from the Flowers and Other Woodcuts · 1917
Although the Cow’slips on this plant, Suggest perhaps a ru‑min‑ant, One never sees the opening bud, Devour the grass or chew its cud. The Cowbird picture, I suspect, Is absolutely incorrect; We make such errors now and then, A sort of cow slip of the pen.