Information

Wildlife in Italy: Bigiarella Sylvia curruca Linnaeus, 1758

Wildlife in Italy: Bigiarella Sylvia curruca Linnaeus, 1758


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Systematic classification and distribution

Class: Birds
Order: Passeriformi
Family: Sylviidae
Kind: Sylvia
Species: S. curruca Linnaeus, 1758

In western and central Europe, part of the Caucasus and Siberia, the nominal subspecies is presentcurruca curruca , while numerous other subspecies inhabit the Asian regions. In Italy the Bigiarella is breeding and migratory, with distribution limited to the Alpine arc. In the Italian Alps it occupies an altitude range between 1,100 and 2,350 meters, towards the upper limit of the conifers and in the transition range with twisted shrubs.

Six subspecies are known:
- Sylvia curruca blythi
- Sylvia curruca caucasica
- Sylvia curruca curruca
- Sylvia curruca halimodendri
- Sylvia curruca jaxartica
- Sylvia curruca telengitica

Bigiarella - Sylvia curruca (photo http://birds.nature4stock.com)

Bigiarella - Sylvia curruca (photo www.naturephoto-cz.com)

Bigiarella - Sylvia curruca

Distinctive characters

Length: 12-13 cm
Wingspan: 19-20 cm

The adult male and female are very similar and have a predominantly brown color on the upper part with a dark gray head, shaded darker still in the area around the eye. The throat is white and then fades to the dirty white of the chest, abdomen and belly. The hips and shoulder are light brown and fade clearing towards the abdomen, chest and belly. The back of the belly before the tail is uniform white. Locchio is dark and the beak is blackish and fades towards the base at the bottom. The legs are dark brown - black. In autumn, young people look very much like adults, differing only in a thin white streak that starts from the beak, passes over the eye and fades towards the nape.

Biology

Typically, the nest is built with dry grass, leaves and cocoons, usually in mountainous areas among woods full of bushes and hedges. The eggs - usually 5, whitish and speckled with darker spots - are hatched by both parents for 11-13 days. The chicks are born between June and July and remain safe in the nest for about 10-13 days after hatching.


Video: Zoo of Naples Italy (July 2022).


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