Long-tailed Tit - Aegithalos caudatus

The long-tailed tit or long-tailed bushtit (Aegithalos caudatus) is a common bird found throughout Europe and Asia. There are several extensive accounts of this species, most notably Cramp and Perrins, 1993; Gaston, 1973; and Harrap and Quinn, 1996. The majority of relevant research has been directed at its social and breeding behaviour.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:

This is the only representative of the Aegithalidae in northern Eurasia. The long-tailed tit exhibits complex global variation with 19 races recognised, divisible into three groups:

  • the caudatus group in northern Europe and Asia. A. c. 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 was formerly considered conspecific.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. Biochemical evidence has shown Aegithalidae to be closely related to the babblerssource wikipedia

 

Belichtingsmodus: Automatische belichting
Belichtingsmethode: Diafragmaprioriteit
Belichtingsduur: 1/640
Bestandsbron: DSC
Flits: Geen flits
ƒ-stop: 6,3
Scherptediepte: 500
Scherptediepte 35-mm film: 750
Versterkingsregeling: Geen
ISO-snelheid: 320

Belichtingsmodus: Automatische belichting
Belichtingsmethode: Diafragmaprioriteit
Belichtingsduur: 1/640
Bestandsbron: DSC
Flits: Geen flits
ƒ-stop: 6,3
Scherptediepte: 500
Scherptediepte 35-mm film: 750
Versterkingsregeling: Geen
ISO-snelheid: 320

Belichtingsmodus: Automatische belichting
Belichtingsmethode: Diafragmaprioriteit
Belichtingsduur: 1/320
Bestandsbron: DSC
Flits: Geen flits
ƒ-stop: 6,3
Scherptediepte: 500
Scherptediepte 35-mm film: 750
Versterkingsregeling: Geen
ISO-snelheid: 320

Belichtingsmodus: Automatische belichting
Belichtingsmethode: Diafragmaprioriteit
Belichtingsduur: 1/320
Bestandsbron: DSC
Flits: Geen flits
ƒ-stop: 6,3
Scherptediepte: 500
Scherptediepte 35-mm film: 750
Versterkingsregeling: Geen
ISO-snelheid: 320 

Belichtingsmodus: Automatische belichting
Belichtingsmethode: Diafragmaprioriteit
Belichtingsduur: 1/320
Bestandsbron: DSC
Flits: Geen flits
ƒ-stop: 6,3
Scherptediepte: 500
Scherptediepte 35-mm film: 750
Versterkingsregeling: Geen
ISO-snelheid: 320 

 

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