Knowra Koel Koel Koels are large cuckoos of the genus Eudynamys, native to South and Southeast Asia. Their loud, distinctive calls and brood-parasitic nesting are characteristic.
Cuckoo : A bird in the family Cuculidae, many species of which lay eggs in other birds’ nests. Koels belong to this family, whose nesting strategies include brood parasitism.
Asian koel : A widespread Eudynamys cuckoo found across South and Southeast Asia, including the Indian subcontinent. This is the species most often meant by “koel” in South Asia.
Egg mimicry : Resemblance between a parasite’s eggs and the eggs of its host species. Koel eggs can resemble host eggs, reducing the chance that hosts reject them.
Indian cuckoo : A medium-sized cuckoo found across South and Southeast Asia, with barred underparts and a different call from the koel. It shares the region and family but is a separate species with a contrasting appearance and voice.
Brood parasitism : A reproductive strategy in which an animal leaves its offspring to be raised by another individual or species. Many koels lay eggs in other birds’ nests rather than raising their own young.
Pacific koel : A Eudynamys cuckoo distributed across parts of Indonesia, New Guinea, and the southwestern Pacific. It extends the koel lineage into island habitats east of mainland Asia.
Host–parasite coevolution : Reciprocal evolutionary change between parasite species and the organisms they exploit. Koels and their nest hosts exert evolutionary pressures on one another.
Asian koel in Australia : The seasonal presence of Asian koels in northern and eastern Australia, where they are known as eastern koels. This population’s movements and conspicuous calls shape the species’ Australian profile.
Avian vocalization : Sound produced by birds, including songs, calls, and other vocal signals. The koel’s loud calls are among its most recognizable traits.
Black-billed koel : A large cuckoo of the genus Eudynamys native to parts of Southeast Asia and Indonesia. Its range and appearance distinguish it from the widespread Asian koel.
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