Cuculidae
The Common Cuckoo displays remarkable agility, with its slender body and long, pointed wings enabling swift, undulating flight patterns. Its ability to manoeuvre through varied habitats, from woodlands to reed beds, demonstrates high aerial prowess.
Though not exceptionally powerful for their size, Roadrunners possess sufficient strength to handle and kill venomous snakes, including rattlesnakes. Their ability to carry prey items and building materials for elevated nests shows moderate strength relative to their body mass.
The Common Cuckoo exhibits extraordinary adaptability. Its parasitic breeding strategy, ability to mimic host eggs, and capacity to thrive in diverse habitats across Europe and Asia showcase remarkable adaptive skills. Additionally, its long-distance migration demonstrates adaptability to varying environments.
Though not typically aggressive towards other adult birds, the Common Cuckoo displays a form of reproductive aggression through its brood parasitism. The behaviour of cuckoo chicks ejecting host eggs or nestlings is notably aggressive, warranting a moderately high score.
The Common Cuckoo's long-distance migration between Europe and Africa demonstrates considerable endurance. Its ability to undertake these journeys, coupled with the energy demands of finding and parasitising multiple host nests during breeding season, indicates high stamina and resilience.