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The cuckoo egg hatches earlier than the host eggs, and the cuckoo chick grows faster; in most cases, the chick evicts the eggs and/or young of the host species. The chick has no time to learn this behavior, nor does any parent stay around to teach it, so it must be an instinct passed on genetically. Reed warbler raising the young of a common cuckoo
As the common cuckoo evolves to lay eggs that better imitate the host's eggs, the host species adapts and is more able to distinguish the cuckoo egg. A study of 248 common cuckoo and host eggs demonstrated that female cuckoos that parasitised common redstart nests laid eggs that matched better than those that targeted dunnocks.
The female cuckoo in each case replaces one of the host's eggs with one of her own. The cuckoo egg hatches earlier than the host's, and the chick grows faster; in most cases the cuckoo chick evicts the eggs or young of the host species. Cuculus species lay coloured eggs to match those of their passerine hosts. Female cuckoos specialise in a ...
A reed warbler raising a common cuckoo chick it hatched from an egg surreptitiously placed in its nest by the cuckoo's parent. A cuckoo's egg is a metaphor for brood parasitism, where a parasitic bird deposits its egg into a host's nest, which then incubates and feeds the chick that hatches, even at the expense of its own offspring.
A common species nest that the cuckoo will choose to place its eggs in is the reed warbler. [7] The common cuckoo distinguishes the warbler's nest and will choose what specific nest to brood in depending on the foliage and distance from the nest. [7] The common cuckoo demonstrates the egg tossing behavior when they are just hatchlings. [14]
The Cuckoo's Egg: Tracking a Spy Through the Maze of Computer Espionage is a 1989 book written by Clifford Stoll.It is his first-person account of the hunt for a computer hacker who broke into a computer at the Lawrence Berkeley National Laboratory (LBNL).
The great spotted cuckoo (Clamator glandarius) is a member of the cuckoo order of birds, the Cuculiformes, which also includes the roadrunners, the anis and the coucals. It is widely spread throughout Africa and the Mediterranean Basin. It is a brood parasite that lays its eggs in the nests of corvids, in particular the Eurasian magpie.
This species of cuckoo, like many others, is a brood parasite where the female lays her eggs in the nests of other bird species. She does this about fifteen times, placing her eggs in separate locations one by one. The host families are usually flycatchers, shrikes or white-eyes.