In the Original Series
- Lucky and Sweet encounter a crowd of crows eating from garbage. The crows are chased off by the two starving dogs. One bird decides to go back to the food, but is chased off by Lucky.
- Throughout the book, Lucky encounters a crow several times.
- The first time a crow appears in The Empty City, it dives from a tree, warning Lucky of the Fierce Dog that almost had him in their jaws.
- The second time is when Lucky comes out of a loudcage after sleeping and sees a perched crow. It eyes Lucky directly and he recognizes it as the same crow that warned him to be careful. Lucky then insists on himself that it can't be the same crow, as all crows look alike. Still, Lucky gives the bird a respectful yip and watches it tilt its head and flap away lazily.
- Later on, when Lucky is with the Leashed Pack, he is with a patrol of Bella, Daisy and Alfie. After being left alone outside the fence of the Fierce Dog home, Lucky jumps with alarm when a crow flaps into the air with a caw.
- When the Leashed Dogs are captured by Blade and Lucky gives them a diversion to escape, he is trapped by the Fierce Dogs. Lucky almost submits to his doom while he is surrounded by Fierce Dogs, he hears a distant clatter of wings. A crow had flapped from the tangled bushes of the wood and circled in the sky, cawing. Lucky is confused on why a crow was hanging out at no-sun (night). He immediately thinks it's the same crow from the city, calling to him for a kick of courage. Lucky then does not give up, and manages to escape the Fierce Dog Pack.
- Finally, as he's free and beyond the Fierce Dog fence, he sees a perched crow ahead of him just as dawn breaks. It sounds as though the crow is cawing to him like a greeting to an old friend. It flaps away and Lucky does not see the same city-crow again until A Hidden Enemy.
- Lucky does spot the crow, whom he soon calls the no-sun crow, several times in the book. Some crow references are acknowledged by the dogs.
- When Alfie dies, the dogs express worry in burying the body for fear of foxes and crows disrupting his peace.
- On page 180, Lucky is awoken by a piercing caw. Lucky didn't know crows were so fond of no-sun. After when he's alone in the forest away from the others, he feels his lone-dog pull again. The feeling of freedom and lack of responsibility. All the sudden, the no-sun crow caws again, drawing his attention.
- Finally Lucky makes the connection of the no-sun crow to the crow he used to know. He's positive the no-sun crow is a messenger from the Forest-Dog, but wished its messages were more clear.
- Later on, the only crow reference made is when the dogs drag the foxes bodies out in a hunting meadow for the crows to eat.
- In Darkness Falls, a crow's screech makes Lucky jump. He looks around, thinking of the no-sun crow. He looks up to find his gaze drawn to a poison cloud.
- When Mickey is explaining the death of their mother to Grunt, Wiggle and Lick, a lone crow's call causes him to flinch and he notes that it's getting late.
- When Lucky and Mickey think back to the Dog-Garden, they are positive something awful had happened there. Crows swooped down to the high trees surrounding the camp.
- The Fierce Dog pups and the two dogs run into coyotes, and upon escaping, Lucky thanks the Forest-Dog to saving them and providing a meal. Lucky feels more at ease when the crows stopped cawing in the forest.