Common Whitethroat

Informazioni

The Common Whitethroat (Curruca communis), known in Italian as Sterpazzola, is a widespread and common passerine bird belonging to the Old World warbler family Sylviidae. It is a migratory species, breeding across most of Europe and western Asia and wintering in sub-Saharan Africa. It is characterized by its distinctive scratchy song and preference for scrubby habitats.

Dimensioni e longevità

Lunghezza

13-15 cm

Apertura alare

18-23 cm

Peso

12-17 g

Longevità

2-5 years (up to 8 years recorded)

Dieta

Insectivore (primarily), Frugivore (seasonally)

Caratteristiche fisiche

Piumaggio

Adult males have a grey head, white throat, and pale pinkish-buff breast and flanks. The back and wings are brownish with rufous edges to the flight feathers, and the tail is dark with white outer tail feathers. Adult females are duller overall, with a browner head and less distinct pinkish wash on the underparts. Both sexes have a prominent white throat patch.

Forma del becco

Small, pointed, and relatively slender, dark grey to blackish.

Colore degli occhi

Dark brown, often with a pale orbital ring.

Colore delle zampe

Pale brown to greyish-brown.

Caratteristiche distintive

The combination of a grey head (males), white throat, rufous wing panel, and white outer tail feathers are key identification features. Its rather long tail is often cocked or fanned.

Aspetto giovanile

Juveniles resemble adult females but are generally warmer brown above, with a buffier wash on the underparts and less distinct grey on the head. The rufous wing panel is often more prominent.

Cambiamenti stagionali

No significant seasonal plumage changes. Breeding and non-breeding plumages are similar, though fresh autumn plumage may appear slightly richer in tone before wear.

Dimorfismo sessuale

Males are more brightly colored with a distinct grey head and pinkish breast. Females are duller, with a browner head and less pronounced pinkish tones on the underparts.

Come identificare

1. 1

   Plumage (Male)

   Look for the distinctive grey head, bright white throat, and pale pinkish-buff breast. The brownish back and wings with rufous edges to the flight feathers are also key.

2. 2

   Plumage (Female/Juvenile)

   Females and juveniles are duller, with a browner head, but still show the white throat and some rufous on the wings. The overall impression is less contrasting than the male.

3. 3

   Tail

   Observe the dark tail with prominent white outer tail feathers, especially noticeable in flight or when the tail is fanned. The tail is often cocked.

4. 4

   Song

   Listen for the characteristic rapid, scratchy, and jumbled warble, often delivered with great enthusiasm from an exposed perch or during a short song-flight.

5. 5

   Habitat

   Check dense, scrubby vegetation, hedgerows, and woodland edges. They are often heard before they are seen, as they tend to stay hidden within the bushes.

Habitat e areale

Biomi

Temperate forests, grasslands, shrublands, agricultural lands.

Areale geografico

Breeds across Europe (excluding northern Scandinavia and parts of Russia) and western Asia, extending east to central Siberia. Winters in sub-Saharan Africa, from Senegal east to Ethiopia and south to South Africa.

Fascia altitudinale

Sea level up to 2,000 meters, occasionally higher in mountainous regions during migration.

Ambienti preferiti

Prefers open, bushy habitats such as hedgerows, scrubland, woodland edges, young plantations, clearings, overgrown gardens, and heathland. Requires dense vegetation for nesting and foraging.

Comportamento

Periodo di attività

Diurnal.

Abitudini alimentari

Primarily insectivorous, feeding on a wide variety of insects and their larvae, including caterpillars, beetles, flies, and aphids. During late summer and autumn, it supplements its diet with berries and small fruits to build up fat reserves for migration.

Comportamento sociale

Generally solitary or found in pairs during the breeding season. Migrates in loose flocks, but not typically seen in large aggregations.

Tipo di volo

Undulating, rather weak, and often low over vegetation. During display flights, males may sing from an exposed perch before performing a short, fluttering song-flight.

Migrazione

Long-distance migratory. Arrives in breeding grounds from late April to May and departs for wintering grounds in sub-Saharan Africa from August to October. Migrates mainly at night.

Territorialità

Males establish and defend breeding territories through song and display flights. They can be quite aggressive towards intruders.

Riproduzione

Stagione riproduttiva

May to July, typically two broods per season.

Abitudini di nidificazione

Nests are typically built low down in dense scrub, brambles, or thorny bushes, usually less than 1 meter above the ground. The nest is a neat, cup-shaped structure made of grass, stems, roots, and hair, often lined with finer materials.

Dimensione della covata

3-6 eggs

Descrizione dell'uovo

3-6 eggs (typically 4-5), smooth, glossy, white to pale greenish-white, heavily speckled and blotched with olive-brown, grey, and sometimes purplish-grey markings, often concentrated at the broad end.

Periodo di incubazione

11-13 days, primarily by the female, but the male may assist.

Periodo di involo

10-12 days after hatching. Young are fed by both parents.

Cure parentali

Both parents participate in incubation (though female more so) and feeding of the nestlings and fledglings.

Dove trovarlo

Consigli sul campo

1. Listen for the song. The Common Whitethroat's distinctive scratchy song is often the first indication of its presence. Learn to recognize it, as the bird itself can be elusive.
2. Scan exposed perches. Males often sing from the top of a bush or a prominent branch before dropping back into cover. Look for movement in these areas.
3. Be patient. They can be shy and spend much of their time hidden. Find a suitable spot and wait quietly; they may eventually emerge or sing closer.
4. Look for movement in dense cover. Even if you can't see the bird clearly, rustling in bushes might indicate its presence as it forages.

Specie simili

Fatti rapidi

Scientific Name:

Curruca communis

Family:

Sylviidae

Diet:

Insects, berries

Habitat:

Scrubland, hedgerows, woodland edges

Migration:

Long-distance migrant to sub-Saharan Africa

Conservation Status:

Least Concern

Curiosità

• The Common Whitethroat was formerly placed in the genus Sylvia, but recent phylogenetic studies led to its reclassification into the genus Curruca.
• Despite its commonness, its population experienced significant declines in the late 1960s due to droughts in its African wintering grounds, highlighting the vulnerability of long-distance migrants to climate events.
• Males often perform a 'butterfly flight' display during the breeding season, fluttering above the bushes while singing vigorously to attract a mate.
• They are known to be quite aggressive towards other birds, especially during the breeding season, defending their territories with vigor.

Classificazione scientifica

Regno

Animalia

Phylum

Chordata

Classe

Aves

Ordine

Passeriformes

Famiglia

Sylviidae

Genere

Curruca

Specie

communis

Esplora Common Whitethroat