"Cuckoo bird" refers to an entire family of related birds. Many species are brood parasites, laying their eggs in the nests of other species, but the majority of species raise their own young. The temperate species are migratory. For species breeding at higher latitudes, food availability means that they migrate to warmer climates during the winter, and all do so. Migration (or in the case of some species - lack of migration) dictates when they nest. Mostly they build their nests when preparing to breed - which occurs most often in the summer months. There is no one particular summer month that is unique as a month for making nests.
Cuckoos lay their eggs in other birds nests. Gets them away from the burden of raising the chick.
Crows however like to do their own parenting.
usually in any nest the Cuckoo can find in a safe place for her young to hatch/grow in.
A Crow???
The Cuckoo bird -- well, actually the cuckoo doesn't "steal" the nest, the female just lays her egg there and let's the original nest owners raise HER young. The Black-headed Grosbeak -- is known to steal parts & pieces of another bird's nest to construct her own. But Sparrows steal nests from Martins, sometimes forcing Martin eggs or even young ones out, letting them fall to the ground. Starlings, in turn, steal nests from Sparrows. The Brown-headed Cowbird also lays its eggs in another's nest and leaves others to raise its young. A mourning dove has been observed taking over a newly built Robins nest.
A crow's nest can be twice as big as a basket ball, almost to the size of a beach ball.
The ostrich.
It takes them 5 to 6 days to hatch!!
A cuckoo does not make a nest, a cuckoo will lay an egg in another birds nest, the other bird will then care for the egg and chick as if it was it's own.
A Crow???
kingfisher
A cuckoo doesn't make a nest of it's own. Instead it lays an egg in another birds nest. The cuckoo relies on the other (smaller) birds to raise it's young for it. Cuckoo birds lay their eggs in clocks. I thought everyone knew that. It is the Brown-headed Cowbird that lays their eggs in other birds' nests.
It's actually not just "some" birds that tolerate cuckoo chicks in their nests, it's most birds.Cuckoos have been labelled by humans as a parasitic bird, which lays its eggs in the nests of other birds. However cuckoos can also be beneficial to their host.Sometimes birds will actually remove the cuckoo's egg from their nest. But most of the time they will actually accept it as one of their own.There are two reasons why a bird will accept a cuckoo's egg as their own.First of all, cuckoos are actually rather mean. If the cuckoo witnesses its egg being evicted from the nest, then the cuckoo will likely return to the nest later and crush the host bird's eggs. Most birds seem to have learnt that removing a cuckoo's egg from their nest will end badly, so they just accept it.The second reason is because the cuckoo egg actually provides the nest with more defence from predators, especially with the spotted cuckoo.Spotted cuckoo chicks for example secrete a terrible smell. This smell makes the nest seem unappetising to predators, such as cats and birds of prey. So the host bird's nest is benefiting from extra protection if they accept the responsibility of raising the cuckoo's chick.In a way, the cuckoo bird works like the Mafia, running a protection racket. That is if you pay your dues (accept the cuckoo's eggs as your own), then you will get protection. But refuse and your nest gets smashed up.Further reading:New Scientist Article: Cuckoo chicks protect their host from predators with smells
Some warbler species know that a Cuckoo means danger to their nest and their future chicks, so the parent Warblers will mob the female cuckoo intruder in the hope that the female cuckoo will move on. However, this defence strategy has a limited success rate and most of the time the female Cuckoo will patiently wait and at the right time, will lay her single egg in the warblers nest and from this point on the female cuckoo has no further involvement in the development of her egg and future chick. The warbler is usually incapable of identifying and removing the cuckoos egg as sometimes the cuckoos egg matches the colouration and pattern of the host warblers eggs. The only major difference between the eggs will be that the cuckoo's egg is bigger. Once the Cuckoos egg has hatched, the Cuckoo chick expels all the other warbler eggs in the nest and will be fed by the warbler as if it was their own. This feeding will continue to happen even when the Cuckoo chick is double the size of the warbler. This is due to the Warblers strong parental instincts.
The Cuckoo is notorious for laying an egg in another bird's nest, leaving the host bird to raise the cuckoo chick. Once the cuckoo chick hatches, it instinctively pushes any unhatched eggs and chicks out of the nest, leaving the cuckoo chick the sole occupant.
A Cuckoo is a bird. It lays one egg in a nest of another bird species. When the Cuckoo chick hatches, it ejects from the nest the eggs and/or chicks of the birds which built the nest, and is fed all the food by the "parent" birds. The parent Cuckoo takes no part in bringing up it's chick. The Cuckoo grows to be a large bird and can look daft sitting on a tiny nest, being fed by the small "parent" birds like finches, etc. The name Cuckoo comes from it's call - "Cook-koo" as in the Cuckoo clock. There is also a Flower called the Cuckoo.
A parasitic relationship. The Cuckoo lays its egg in a warblers (E.g. Reed warbler) nest and the cuckoo hatch-ling expels the eggs of the warbler. Therefore one species (the Cuckoo) benefits and the other one is at a disadvantage (the warbler). So the symbiotic relationship is parasitic.
The Cuckoo's Egg - book - has 326 pages.
Cuckoo's Egg - novel - was created in 1985-03.
Yes, but it does not build it's own nest. The female Cuckoo lays one egg in the nest of another species, like the Reed Warbler, Meadow Pippit or Dunnock, removing one of the existing eggs to keep the number in the nest the same. Each female will lay an egg in 12 to 24 host nests each year. Once it has hatched the Cuckoo chick pushes any eggs or chicks of the host parents out of the nest so that it can eat all of the food that is brought to the nest itself. Neither the natural mother or father of the Cuckoo chick plays any part in bringing the chick up. Instead, the "adoptive" parents believe the chick is theirs and feed it. By the time the Cuckoo chick leaves the nest it is massive compared to a chick of the same species as the nest builder, but the adoptive parents probably do not work any harder as instead of 5 to 10 mouths to feed there is just the Cuckoo chick shouting to be fed.