Throughout the '70s and a good chunk of the '80s, Black Canary appeared in backup stories of her own or with Green Arrow in the pages of World's Finest Comics, Detective Comics, and in a few notable cases, Adventure Comics.
In April 1972, Dinah appeared in Adventure Comics #418 in a story written by Dennis O'Neill and drawn by Alex Toth. The story is reprinted in the Black Canary Archives hardcover collection. I don't have the actual print comic, which sucks because I would love to read the Supergirl and Doctor Mid-Nite stories included. Maybe Anj from Comic Box Commentary is familiar with the issue.
The story was untitled when first published in Adventure, but credited as "The Canary and the Cat" in the Archives collection. Here now, the first part of O'Neill and Toth's story. I've included the whole thing because, well, because I can't deprive anyone of Toth's luscious depiction of the character.
Come back tomorrow for part 2!