Cinereous Tit
Encyclopedia
The Cinereous Tit is a species of bird
Bird
Birds are feathered, winged, bipedal, endothermic , egg-laying, vertebrate animals. Around 10,000 living species and 188 families makes them the most speciose class of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from...

 in the tit family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 Paridae. This species is made up of several populations that were earlier treated as subspecies of the Great Tit
Great Tit
The Great Tit is a passerine bird in the tit family Paridae. It is a widespread and common species throughout Europe, the Middle East, Central and Northern Asia, and parts of North Africa in any sort of woodland. It is generally resident, and most Great Tits do not migrate except in extremely...

 (Parus major). These birds are grey backed with white undersides. The Great Tit in the new sense is distinguishable by the greenish-back and yellowish underside. This distribution of this species extends from parts of West Asia across South Asia
South Asia
South Asia, also known as Southern Asia, is the southern region of the Asian continent, which comprises the sub-Himalayan countries and, for some authorities , also includes the adjoining countries to the west and the east...

 and into Southeast Asia
Southeast Asia
Southeast Asia, South-East Asia, South East Asia or Southeastern Asia is a subregion of Asia, consisting of the countries that are geographically south of China, east of India, west of New Guinea and north of Australia. The region lies on the intersection of geological plates, with heavy seismic...

.

Description

Like others in the genus, it has a broad black ventral line and has no crest. This tit is part of a confusing group of species but is distinct in having a grey-back, black hood, white cheek patch and a white wing-bar. The underparts are white with the black central stripe running along the length. The female has a narrower ventral line and is slightly duller. The upper tail coverts are ashy while the tail is black with the central 4 pairs of feathers ashy on the outer webs and all but the central pair are tipped white. The fifth pair is white with a black rachis and a band of black on the inner web. The outermost pair of tail feathers are all white with a black shaft. The undertail coverts are black towards the centre but white on the sides.

Taxonomy and systematics

Several of the subspecies formerly placed within Parus major are now placed in this species (all of which have a grey rather than greenish back as adults, although young birds show some green on the back and yellowish on the underside ). These geographically separated populations show differences mainly in the shade of grey, the extent of white on the tail feathers and in size, although the variation in size is mainly clinal:
  • cinereus Vieillot, 1818 nominate form from Java and the Lesser Sundas
  • intermedius Zarudny, 1890 - Iran and Turkmenistan
  • decolorans Koelz, 1939 - Afghanistan and Pakistan.
  • ziaratensis Whistler, 1929 - southern Afghanistan and west Pakistan (very pale and bluish, approaching Parus bokharensis)
  • caschmirensis E. J. O. Hartert, 1905 - Western Himalayas (has a grey nuchal patch)
  • nipalensis Hodgson, 1837 - Subhimalayas (includes planorum of the Punjab plains)
  • vauriei Ripley, 1950 - NE India
  • stupae Koelz, 1939 - Peninsular India
  • mahrattarum E. J. O. Hartert, 1905 - Western Ghats
    Western Ghats
    The Western Ghats, Western Ghauts or the Sahyādri is a mountain range along the western side of India. It runs north to south along the western edge of the Deccan Plateau, and separates the plateau from a narrow coastal plain along the Arabian Sea. The Western Ghats block rainfall to the Deccan...

     and Sri Lanka
  • templorum Meyer de Schauensee, 1946 - W Thailand and S Indochina
  • hainanus E. J. O. Hartert, 1905 - Hainan I.
  • ambiguus (Raffles, 1822) - Malay Peninsula and Sumatra
  • sarawacensis Slater, 1885 - Borneo

Behaviour and ecology

These birds are usually seen in pairs or small groups that sometimes join mixed-species foraging flocks. They forage mainly by gleaning
Gleaning (birds)
Gleaning is a term for a feeding strategy by birds in which they catch invertebrate prey, mainly arthropods, by plucking them from foliage or the ground, from crevices such as rock faces and under the eaves of houses, or even, as in the case of ticks and lice, from living animals. This behavior is...

, capturing insects (mainly caterpillars, bugs and beetles) that are disturbed and will also feeding on buds and fruits. They sometimes use their feet to hold insects which are then torn with their beak. They may also wedge hard seeds in a bark crevice before hammering them with their beak (noted in ssp. caschmirensis).

The calls are a whistling titiweesi...titiweesi... witsi-seesee or other variants repeated three of four times followed by a break. The calling is particularly persistent during the breeding season. In playback experiments, the churring alarm calls of the European Parus major and Asian species are responded to by each other but the songs of the European species do not elicit much response in P. c. mahrattarum. About 4 to 6 eggs form the normal clutch (9 recorded in caschmirensis with one case of two nests side by side). The breeding season is summer and but dates vary across their range. Some birds may raise more than one brood. In southern India and Sri Lanka the breeding season is February to May (mainly before the Monsoons) but nests have also been seen from September to November. The nests are placed in hollows in trees or in a wall or mud-bank with a narrow entrance hole and the floor of the cavity is lined with moss, hair and feathers. They sometimes make use of the old nest of a woodpecker or barbet. Both parents take part in incubation and hissing from within the nest when threatened. They may also roost in cavities such as those in cut bamboo.

A species of flea Ceratophyllus gallinae has been recorded in their nests from India.

External links

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