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The great reed warblers' responses to the common cuckoo eggs varied: 66% accepted the egg(s); 12% ejected them; 20% abandoned the nests entirely; 2% buried the eggs. 28% of the cuckoo eggs were described as "almost perfect" in their mimesis of the host eggs, and the warblers rejected "poorly mimetic" cuckoo eggs more often.
The black-billed cuckoo (Coccyzus erythropthalmus) is a New World species in the Cuculidae family. The scientific name is from Ancient Greek . The genus name, kokkuzo , means to call like a common cuckoo , and erythropthalmus is from eruthros , "red" and ophthalmos , "eye".
The chestnut-breasted malkoha is typical of the Phaenicophaeinae in having brightly coloured skin around the eye.. Cuckoos are medium-sized birds that range in size from the little bronze cuckoo, at 17 g (0.6 oz) and 15 cm (6 in), to moderately large birds, ranging from 60–80 cm (24–31 in) in length, such as the giant coua of Madagascar, the coral-billed ground-cuckoo of Indochina, and ...
The Jacobin cuckoo (Clamator jacobinus), also pied cuckoo or pied crested cuckoo, is a member of the cuckoo order of birds that is found in Africa and Asia. It is partially migratory and in India , it has been considered a harbinger of the monsoon rains due to the timing of its arrival. [ 2 ]
The black cuckoo is a medium-sized cuckoo. The sexes are similar, the plumage varying by subspecies; Cuculus clamosus clamosus has upper parts black glossed with green, slatey-grey wings and black tail tipped with white and sometimes with the outer feathers barred or spotted with white or buff; Cuculus clamosus gabonensis is mostly black with a red throat and black and white barring on the belly.
The female cuckoo lays one, sometimes two, white or bluish eggs in the host's large stick nest. The eggs hatch in 15 days, with a further 18 days until the cuckoo fledges. The young spinetails disappear. This species is about 27 cm (11 in) long and weighs 40 g (1.4 oz). The adult is mainly grey-brown above, streaked with black and buff.
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 ...
Like many other cuckoos, the African cuckoo is a brood parasite, the female laying her eggs in the nests of birds of other species, removing an egg already present in the nest. [3] Target hosts vary across the range, and the cuckoo's eggs usually closely match in colour and size the eggs of the host species; the yellow-billed shrike ...