However, their populations have declined significantly in recent decades, and they face several threats that could lead to them becoming endangered in the future. These threats include:
* Habitat loss and fragmentation: The Yellow-billed Cuckoo relies on mature forests, particularly deciduous forests, for nesting and foraging. Deforestation and fragmentation of these habitats are major threats to their populations.
* Climate change: Changes in weather patterns, including increased droughts and extreme temperatures, can affect the availability of food and nesting sites for Yellow-billed Cuckoos.
* Parasitism by Brown-headed Cowbirds: These birds lay their eggs in the nests of other species, including Yellow-billed Cuckoos. Cowbird chicks often outcompete cuckoo chicks for food and resources, reducing the success of cuckoo nests.
* Pesticide use: Exposure to pesticides can negatively affect cuckoo health and survival, particularly during breeding season.
* West Nile Virus: This disease has been found to affect Yellow-billed Cuckoos, potentially contributing to population decline.
While the Yellow-billed Cuckoo is not currently endangered, the threats it faces are significant and warrant conservation efforts.
To learn more about conservation efforts for this species, you can consult:
* The IUCN Red List: [https://www.iucnredlist.org/](https://www.iucnredlist.org/)
* The Cornell Lab of Ornithology: [https://www.allaboutbirds.org/](https://www.allaboutbirds.org/)
* The North American Bird Conservation Initiative: [https://www.nabci.net/](https://www.nabci.net/)