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Long-tailed Tit or Long-tailed bushtit, Aegithalos caudatus, Stjärtmes, Silver-throated Tit or Silver-throated dasher


The long-tailed tit or long-tailed bushtit (Aegithalos caudatus), called Stjärtmes in Skåne, occasionally referred to as the silver-throated tit or silver-throated dasher, is a common bird found throughout Europe and Asia. The genus name Aegithalos was a term used by Aristotle for some European tits, including the long-tailed tit.

Distribution and habitat
The long-tailed tit is globally widespread throughout temperate northern Europe and Asia, into boreal Scandinavia and south into the Mediterranean zone. It inhabits deciduous and mixed woodland with a well-developed shrub layer, favouring edge habitats. It can also be found in scrub, heathland with scattered trees, bushes and hedges, in farmland and riverine woodland, parks and gardens.

The bird's year-round diet of insects and social foraging bias habitat choice in winter towards deciduous woodland, typically of oak, ash and locally sycamore species. For nesting, strong preference is shown towards scrub areas. The nest is often built in thorny bushes less than 3 metres above the ground.

Long-tailed Tit or Long-tailed bushtit, Aegithalos caudatus, Stjärtmes, Silver-throated Tit or Silver-throated dasher

Range map
Range map from www.oiseaux.net - Ornithological Portal Oiseaux.net
www.oiseaux.net is one of those MUST visit pages if you're in to bird watching. You can find just about everything there


Long-tailed Tit or Long-tailed bushtit, Aegithalos caudatus, Stjärtmes, Silver-throated Tit or Silver-throated dasher
Distribution map of long-tailed tits - Click HERE for full size map
By Donkey shot at German Wikipedia - Own work (Original text: selbst erstellt),
CC BY-SA 3.0 de, https://commons.wikimedia.org/w/index.php?curid=12211965


Taxonomy and systematics
The long-tailed tit was formally described by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his Systema Naturae under the binomial name Parus caudatus. The specific epithet caudatus is the Latin word for "tailed".

Linnaeus did not invent this Latin name. "Parus caudatus" had been used by earlier authors such as the Swiss naturalist Conrad Gessner in 1555, the Italian naturalist Ulisse Aldrovandi in 1599, and the English ornithologist Francis Willughby in 1676. Willughby listed the English name as the "long tail'd titmouse".

The long-tailed tit was first classified as a true tit of the Parus group. Parus has since been split from the Aegithalidae, with the latter becoming a distinct family containing three genera:

• Aegithalos (long-tailed tits), five species including A. caudatus

• Psaltria (pygmy bushtit), monotypic

• Psaltriparus (American bushtit), monotypic.


This is the only representative of the Aegithalidae in northern Eurasia. The long-tailed tit exhibits complex global variation with 17 races recognised, divisible into three groups:


• the caudatus group in northern Europe and Asia. Aegithalos caudatus caudatus has a pure white head

• the europaeus group in southern and western Europe, north-east China, and Japan. Separating rosaceus from other members of the

• europaeus group though is problematic, relying on varying thickness of the crown stripes and amount of streaks and colour on the underparts

• the alpinus group in Mediterranean Europe and south-west Asia.


The silver-throated bushtit (Aegithalos glaucogularis) from eastern China was formerly considered conspecific but the plumage is distinctive and there are significant genetic differences.

Where the groups meet there are extensive areas occupied by very variable ‘hybrids’. The British long-tailed tit, subspecies rosaceus, belongs to the europaeus group.

Description This species has been described as a tiny (at only 13–15 cm in length, including its 7–9 cm tail), round-bodied tit with a short, stubby bill and a very long, narrow tail. The sexes look the same and young birds undergo a complete moult to adult plumage before the first winter. The plumage is mainly black and white, with variable amounts of grey and pink. Its appearance has given rise to the nickname "the flying lollipop".

Size: 13 - 15cm including the 7 - 9cm long tail cm
Wingspan: -
Weight: 7 - 9 g
Longevity: 8 Years
Distinctive Feature
Similar Species


Voice
Vocalisations are a valuable aid to locating and identifying these birds. When in flocks they issue constant contact calls and are often heard before they are seen. They have three main calls, a single high pitched ‘pit’, a ‘triple trill’ eez-eez-eez, and a rattling ‘schnuur’. The calls become faster and louder when the birds cross open ground or if an individual becomes separated from the group.

Listen to the Long-tailed Tit / Stjärtmes

Remarks from the Recordist

Recorded with my ZOOM H5 Handy Recorder. High Pass Filter applied with Audacity.

The bird was singing jumping around in the trees around me and it was very hard to take pictures. The same bird can also be heard in my Song Thrush recording I made from my video https://youtu.be/8xBxf6YhWsg

www.xeno-canto.org


Behaviour and ecology

Food and feeding
The long-tailed tit is insectivorous throughout the year. It eats predominantly arthropods, preferring the eggs and larvae of moths and butterflies. Occasional vegetable matter is taken in the autumn.

Nest
The nest of the long-tailed tit is constructed from four materials - lichen, feathers, spider egg cocoons and moss, with over 6,000 pieces used for a typical nest. The nest is a flexible sac with a small, round entrance on top, suspended either low in a gorse or bramble bush or high up in the forks of tree branches. The structural stability of the nest is provided by a mesh of moss and spider silk.

Long-tailed Tit or Long-tailed bushtit, Aegithalos caudatus, Stjärtmes, Silver-throated Tit or Silver-throated dasher
Eggs, Collection Museum Wiesbaden, Germany
By Klaus Rassinger und Gerhard Cammerer, Museum Wiesbaden -
Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=35758297



The tiny leaves of the moss act as hooks and the spider silk of egg cocoons provides the loops; thus forming a natural form of velcro.[16] The tit lines the outside with hundreds of flakes of pale lichens - this provides camouflage. Inside, it lines the nest with more than 2,000 downy feathers to insulate the nest. Nests suffer a high rate of predation with only 17% success.

Social behaviour
Extensive work has been done by at Wytham Wood, Oxfordshire, in Germany and Japan.

"Males fighting for the possession of territory. The feathers have been torn from the crown of the defeated and dying rival" (H.E. Howard (1920), Territory in Bird Life), p.145

Outside the breeding season they form compact flocks of 6 to 17 birds, composed of family parties (parents and offspring) from the previous breeding season, together with any extra adults that helped to raise a brood. These flocks will occupy and defend territories against neighbouring flocks.

The driving force behind the flocking behaviour is thought to be that of winter roosting, being susceptible to cold; huddling increases survival through cold nights.

From July to February, the non-breeding season, long-tailed tits form flocks of relatives and non-relatives, roosting communally. When the breeding season begins, the flocks break up, and the birds attempt to breed in monogamous pairs. Males remain within the winter territory, while females have a tendency to wander to neighbouring territories.

Pairs whose nests fail have three choices: try again, abandon nesting for the season or help at a neighbouring nest. It has been shown that failed pairs split and help at the nests of male relatives, recognition being established vocally.

The helped nests have greater success due to higher provisioning rates and better nest defence. At the end of the breeding season, in June–July, the birds reform the winter flocks in their winter territory.

Helpers
Due to high predation, there is a high nest failure rate. If nest failure occurs after the beginning of May, failed breeders will not try to re-nest, but may become helpers at a nest of another, usually related, pair. In one study, around 50% of nests had one or more helpers. By helping close relatives, helpers gain indirect fitness benefits by increasing the survivability of related offspring.

Helpers may also gain greater access to mates and territories in the future. Helpers also gain experience raising young and therefore their future offspring have greater survivability rates. Males and females are equally likely to become helpers. Parents may allow the care of helpers to be additive to their own efforts, or on the other extreme, they may reduce their efforts with the care of the helpers.

Juvenile males have a higher survivability than juvenile females, although the survival rate for adults of the two sexes is the same. Offspring that were raised with helpers have a higher survivability than offspring raised without.

Failed breeders that became helpers have a higher survivability than failed breeders who did not. This may be because of the reduced energy expenditure from sharing a nest. This is similar to acorn Woodpeckers and green wood hoopoes. However, failed breeders that did not help are more likely to breed successfully in subsequent years, so there may be a cost of helping.

This may be due to helpers having relatively poorer body conditions at the end of the breeding season, similar to Pied Kingfisher and white-winged chough. Successful breeders have a survivability rate around the survivability of failed breeders who became helpers.

Status and conservation
Globally, the species is common throughout its range, only becoming scarce at the edge of the distribution. The IUCN, BirdLife International and The British Trust for Ornithology (BTO) all list the long-tailed tit as a ‘species of least concern’, currently under little or no threat and reasonably abundant.

Due to their small size they are vulnerable to extreme cold weather with population losses of up to 80% being recorded in times of prolonged cold. It is thought that populations rapidly return to previous levels due to high breeding potential

Conservation status
Long-tailed Tit or Long-tailed bushtit, Aegithalos caudatus, Stjärtmes, Silver-throated Tit or Silver-throated dasher
Least Concern (IUCN 3.1)
IUCN Red List of Threatened Species. International Union for Conservation of Nature. doi:10.2305/IUCN.UK.2016-3.RLTS.T103871923A87471081.en. Retrieved 21 March 2018.



From Wikipedia, the free encyclopedia
From Wikipedia, the free encyclopedia

www.birdforum.net


Sighted: (Date of first photo that I could use) 16 May 2019
Location: Beijershamn, Öland


Long-tailed Tit or Long-tailed bushtit, Aegithalos caudatus, Stjärtmes, Silver-throated Tit or Silver-throated dasher
Long-tailed Tit / Stjärtmes - Beijershamn, Öland - 16 May 2019

Long-tailed Tit or Long-tailed bushtit, Aegithalos caudatus, Stjärtmes, Silver-throated Tit or Silver-throated dasher
Long-tailed Tit / Stjärtmes - Beijershamn, Öland - 16 May 2019

Long-tailed Tit or Long-tailed bushtit, Aegithalos caudatus, Stjärtmes, Silver-throated Tit or Silver-throated dasher
Long-tailed Tit / Stjärtmes - Beijershamn, Öland - 16 May 2019

Long-tailed Tit or Long-tailed bushtit, Aegithalos caudatus, Stjärtmes, Silver-throated Tit or Silver-throated dasher
Long-tailed Tit / Stjärtmes - Beijershamn, Öland - 16 May 2019

Long-tailed Tit or Long-tailed bushtit, Aegithalos caudatus, Stjärtmes, Silver-throated Tit or Silver-throated dasher
Long-tailed Tit / Stjärtmes - Beijershamn, Öland - 25 April 2021

Long-tailed Tit or Long-tailed bushtit, Aegithalos caudatus, Stjärtmes, Silver-throated Tit or Silver-throated dasher
Long-tailed Tit / Stjärtmes - Beijershamn, Öland - 25 April 2021

Long-tailed Tit or Long-tailed bushtit, Aegithalos caudatus, Stjärtmes, Silver-throated Tit or Silver-throated dasher
Long-tailed Tit / Stjärtmes - Beijershamn, Öland - 25 April 2021

Long-tailed Tit or Long-tailed bushtit, Aegithalos caudatus, Stjärtmes, Silver-throated Tit or Silver-throated dasher
Long-tailed Tit / Stjärtmes - Beijershamn, Öland - 29 April 2021

Long-tailed Tit or Long-tailed bushtit, Aegithalos caudatus, Stjärtmes, Silver-throated Tit or Silver-throated dasher
Long-tailed Tit / Stjärtmes - Beijershamn, Öland - 29 April 2021



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