Common Cuckoo

== Description ==
The Common cuckoo (Cuculus canorus) is a member of the cuckoo order of birds, Cuculiformes, which includes the roadrunners, the anis, and the coucals. It is a brood parasite, which means it lays eggs in the nests of other bird species, particularly of dunnocks, Meadow pipits, and Reed warblers. Although its eggs are larger than those of its hosts, the eggs in each type of host nest resemble the host's eggs. The adult too is a mimic, in its case of the sparrowhawk; since that species is a predator, the mimicry gives the female time to lay her eggs without being attacked.
== Appearance ==
The Common cuckoo is a medium-sized slender bird. It has a greyish body and long tail, similar to a sparrowhawk in flight. There is a rufous color morph, which occurs occasionally in adult females but more often in juveniles. Common cuckoos in their first autumn have variable plumage. Some have strongly barred chestnut-brown upperparts, while others are plain grey. Rufous-brown birds have heavily barred upperparts with some feathers edged with creamy white. All have whitish edges to the upper wing coverts and primaries (flight feathers). The secondaries and greater coverts have chestnut bars or spots. The most obvious identification features of juvenile Common cuckoos are the white nape patch and white feather fringes.
== Distribution ==
Common cuckoos are widespread summer migrants to Europe and Asia, and winter in Africa. These birds inhabit forests and woodlands, grasslands, meadows, shrubland, heathland, reedbeds, open moorlands, and cultivated areas.
== Lifestyle ==
Common cuckoos are generally shy birds that lead a solitary lifestyle; however, during the breeding season, they become noisy and are often heard singing their far-carrying song while claiming their territories and attracting mates. The male's song sounds like 'goo-ko' and is usually given from an open perch. The female has a loud bubbling call. Common cuckoos are active during the day spending many hours in search of food. They are especially fond of noxious hairy types of caterpillars typically avoided by other birds. Cuckoos are unusual among birds in processing their prey prior to swallowing; they will rub it back and forth on hard objects such as branches and then crush it with special bony plates in the back of the mouth.
== Diet ==
Common cuckoos are carnivores (insectivores) and feed on various insects, preferring hairy caterpillars, which are distasteful to many birds. They also occasionally eat the eggs and chicks of small birds.
== Reproduction ==
Common cuckoos start singing early in the year in April. The male typically sings with intervals of 1-1.5 seconds, in groups of 10-20 with a rest of a few seconds between groups. The wings are drooped when calling intensely and when in the vicinity of a potential female, the male often wags its tail from side to side or the body may pivot from side to side. Common cuckoos are brood parasites which means that they don't build nests but lay their eggs in the nests of other birds. A female may visit up to 50 nests during a breeding season. She will remove one of the host's eggs from the nest and then lay her own. The eggs of Common cuckoos are spotted or solid in color, depending upon the color of the host's egg. The naked, altricial cuckoo chick hatches after 11-13 days. It is a much larger bird than its hosts and needs to monopolize the food supplied by the parents. The chick will roll the other eggs out of the nest by pushing them with its back over the edge. If the host's eggs hatch before the cuckoo's, the cuckoo chick will push the other chicks out of the nest in a similar way. The Common cuckoo chick usually leaves the nest 2-3 weeks after hatching and will first breed at the age of 2 years.
== Population ==
=== Population threats ===
Common cuckoos don't face any major threats at present.
=== Population number ===
According to the IUCN Red List, the total population size of the Common cuckoo is 40,000,000-74,999,999 mature individuals. The European population of the species consists of 5,960,000-10,800,000 breeding males, which equates to 11,900,000-21,500,000 mature individuals. Currently, the Common cuckoo is classified as Least Concern (LC) on the IUCN Red List but its numbers today are decreasing.
== Fun Facts ==
The English word "cuckoo" comes from the Old French "cucu".
The cuckoo family gets its English and scientific names from the call of the male Common cuckoo, which is also familiar with cuckoo clocks.
During the breeding season, Common cuckoos often settle on an open perch with drooped wings and raised tails.
The feathers of the cuckoos are generally soft, and often become waterlogged in heavy rain. Cuckoos often sun themselves after rain, and some even hold their wings open in the manner of a vulture or cormorant while drying.
Cuckoos have played a role in human culture for thousands of years, appearing in Greek mythology as sacred to the goddess Hera. In Europe, for example, the cuckoo is associated with spring, and in Japan, the bird symbolizes unrequited love.
== Gallery ==
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== Main References ==
https://animalia.bio/common-cuckoo
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