The Cuckoo Dragon first appears in A Hero's Guide to Deadly Dragons, and while it does not feature in the story, it is one of the dragon profiles at the back of the book.

Cuckoo Dragons kept to themselves and did not take part in the Dragon Rebellion.

Traits and Abilities

Cuckoo Dragons are physically average, with the typical dragon teeth and claws. They are also rather intelligent.

Behaviorally, Cuckoo Dragons share behaviors with the Cuckoo bird, hence this dragon's name. Both this dragon and the cuckoo bird will lay a single egg in the nest of another species of bird. However, instead of taking over the bird's nest and raising its young, it leaves it up to the bird that owns the nest to raise it, which takes in the foreign egg as if it were its own. When the dragon (or cuckoo bird) finally hatches, the unwitting foster parent still continues to take care of it, despite the obvious physical differences. Depending on the dragon's metabolism, it may or may not eat its foster bird parent when it finally leaves the nest.

Interesting to note, the Cuckoo Dragon's size is graded as a "6", which places it in the range of a mid-sized Riding Dragon.