Plaintive Cuckoo bears a scientific name "Cacomantis merulinus" is a species of Indian Indian bird belonging to the genus Cacomantis in the cuckoo family Cuculidae.
Structure of Plaintive Cuckoo
Plaintive Cuckoo is a fairly small cuckoo, 21-23.5 centimetres long. The adult male Plaintive Cuckoo is grey-brown above and orange below with a grey head, throat and upper breast. There are white tips to the tail feathers. The legs and feet Plaintive cuckoo are yellow. The eye of Plaintive Cuckoo is red and the bill is black above and yellow below. The adult female Plaintive Cuckoo is sometimes similar to the male but often occurs in a "hepatic" morph. This form is reddish-brown above with dark bars. The under parts are paler with fainter barring. There is a pale stripe over the eye and the tail has dark bars along its whole length. The juvenile Plaintive cuckoos are similar to hepatic females but are paler and have dark streaks rather than bars on the crown and throat. The male has several plaintive whistling calls. These include an ascending series of three-note phrases and a series of 11 or 12 descending notes.
Species of Plaintive Cuckoo
There are four subspecies of Plaintive Cuckoo. The nominate form C. M. merulinus is found in the Philippines where it is common on many of the larger islands. C. M. querulus is the most widespread form, occurring in north-east India, Bangladesh, southern China, Myanmar, Thailand, Cambodia, Laos and Vietnam. It is a summer visitor to most of its Chinese range, migrating south for the winter. C. M. threnodes is found in the Malay Peninsula, Sumatra and Borneo while C. M. lanceolatus occurs in Java, Bali and Sulawesi. The Grey-Bellied Cuckoo was formerly classified as a subspecies of the plaintive cuckoo but is now often treated as a separate species.
Nests of Plaintive Cuckoo
Plaintive Cuckoo inhabits forest edge, open woodland, scrub, grassland, farmland, parks and gardens. It feeds on invertebrates. It is normally solitary and is often difficult to see.
Behaviour of Plaintive Cuckoo
Plaintive Cuckoo is a brood parasite, laying its eggs in the nests of cisticolas, prinias and tailorbirds. The eggs are similar to those of the host species but are larger. Small birds often mob the cuckoo to drive it away from their nests.
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