Watch an intense, up-close rendering of a cuckoo-style vocal performance captured with ultra-sharp 4K imagery and natural audio — the kind of resonant rolling notes that make bird watchers stop and pinpoint a canopy perch. This short isolates the deep, hollow phrases and measured throat expansions typical of large cuckoos, delivering a concise field moment that highlights how the bird projects its call through mossy canopy layers. Whether you’re here for the visual detail or the sound signature,

Join Delta's Waterfowl Scientist, Dr. Chris Nicolai, as he discusses the most notorious nest parasites and how they carry out this unique nesting strategy to survive, which can significantly impact the reproductive success of their parasitized counterparts. https://deltawaterfowl.org/research | Delta Waterfowl Foundation

Baby STUCK for Seconds eating Outsized Red Cherry, Cuckoo eggs brood parasitism in Nest | Natural Bird Check