Dave Bevan / Long tailed tit (Aegithalos caudates) nest building, Bedfordshire, England, UK, April.

Colin Varndell / Long-tailed tit (Aegithalos caudatus) profile portrait, Dorset, UK February

Ben Hall / Long tailed tits (Aegithalos caudatus) pair perched on pine branch in snowfall, Cheshire, UK March

Grzegorz Lesniewski / Long-tailed Tit (Aegithalos caudatus) portrait. Bieszczady National Park, the Carpathians, Poland, March.

Stephen Dalton / Blue tits (Parus caeruleus) feeding at nut feeder, Long tailed tit (Aegithalos caudatus) flying to feeder, UK

Andy Rouse / Long tailed tit (Aegithalidae caudatus) perched on branch, UK

WILLIAM OSBORN / Long tailed tit & sallow flowers UK

Ashley Cooper / Long-tailed tit (Aegithalos caudatus) gathering feathers for nest. May.

Fabrice Cahez / Long-talled tit (Aegithalos caudatus) perched, Vosges, France, April.

David Tipling / Long-tailed tits (Aegithalos caudatus) on fat ball feeder in garden Norfolk, England, UK. February.

David Tipling / Long-tailed tits (Aegithalos caudatus) on fat ball feeder in garden Norfolk, England, UK. February.

Steve Downer / Long tailed tits (Aegithalos caudatus) feeding on suet bird feeder, Birmingham, England, UK, March.

Nick Upton / Long-tailed tit (Aegithalos caudatus) perched on a bird feeder filled with peanuts alongside Blue tits (Parus caeruleus) Gloucestershire, UK, February.

Jussi Murtosaari / Long-tailed tit (Aegithalos caudatus caudatus) placing feather in nest, Finland. April.

Jussi Murtosaari / Long-tailed tit (Aegithalos caudatus caudatus) with feather for nest, Finland. April.

Jussi Murtosaari / Long-tailed tit (Aegithalos caudatus caudatus), Finland, March.

Dave Bevan / Long tailed tit (Aegithalos caudatus) feeding chicks, Carmarthenshire, Wales, UK, June

Andy Sands / Long tailed tit (Aegithalos caudatus) at nest with chicks at entrance hole, Hertfordshire, England, UK, April

Andy Sands / Long tailed tit (Aegithalos caudatus) at nest with chicks at entrance hole, Hertfordshire, England, UK, April

Dave Bevan / Long tailed tits (Aegithalos caudatus) feeding from a bird table alongside Blackbirds (Turdus merula), Common chaffinches (Fringilla coelebs), Bramblings (Fringilla montifringilla) and Greenfinches (C...

Stephen Dalton / Long tailed tit (Aegithalos caudatus) on lichen covered branch, Sussex, UK December

Stephen Dalton / Long tailed tit (Aegithalos caudatus) on lichen covered branch, Sussex, UK December

Stephen Dalton / Long tailed tits (Aegithalos caudatus) small flock feed on hanging feeder, Sussex, UK December

Stephen Dalton / Long tailed tits (Aegithalos caudatus) on lichen covered branch, Sussex, UK December

Ernie Janes / Long tailed tit (Aegiyhalos caudatus) on peanut feeder, England, UK, February.

Ernie Janes / Long tailed tit (Aegiyhalos caudatus) on hazel catkins, England, UK, February.

Ernie Janes / Long tailed tit (Aegithalos caudatus) on Hazel branch with catkins, England, UK, February.

Colin Varndell / Long-tailed tit (Aegithalos caudatus) in winter. Dorset, UK.

Dave Bevan / Long tailed tit (Aegithalos caudatus) feeding on a sunflower seed whilst perched in a tree, Norfolk, England, UK, February.

Dave Bevan / Long tailed tit (Aegithalos caudatus) taking a sunflower seed from a bird table before flying away, Norfolk, England, UK, February.

Colin Varndell / Long-tailed tit (aegithalos caudatus) perched on twig in winter, Dorset, UK, February.

Jussi Murtosaari / Long-tailed bushtit (Aegithalos caudatus) north European form with white head, Uto, Korppoo, Parainen / Lansi-Turunmaa, Lounais-Suomi, Varsinais-Suomi / Southwestern Finland, Finland. February

Jussi Murtosaari / Long-tailed bushtit (Aegithalos caudatus) white headed form, Uto, Korppoo, Parainen / Lansi-Turunmaa, Lounais-Suomi, Varsinais-Suomi / Southwestern Finland, Finland. February

Jussi Murtosaari / Long-tailed bushtit (Aegithalos caudatus) hanging upside down, north European form with white head, Uto, Korppoo, Parainen / Lansi-Turunmaa, Lounais-Suomi, Varsinais-Suomi / Southwestern Finland, Finl...

Aflo / Long-tailed tit (Aegithalos caudatus) hanging upside down from branch in autumn, Japan. December.

David Tipling / Long-tailed tit (Aegithalos caudatus), Norfolk, February.

David Tipling / Long-tailed Tit (Aegithalos caudatus) in garden, Norfolk, England, UK, December.

David Tipling / Long-tailed Tit (Aegithalos caudatus) in garden, Norfolk, England, UK, December.

Stephen Dalton / Long tailed tits (Aegitalos caudatus) and Blue tits (Cyanistes caeruleus) on bird feeder, Sussex, England, UK, March.

Markus Varesvuo / Long-tailed tit (Aegithalos caudatus) perched on twig, Uto, Finland, October.

Jussi Murtosaari / Long-tailed tit (Aegithalos caudatus) central Finland, April.

Jussi Murtosaari / Long-tailed tit (Aegithalos caudatus) central Finland, March.

STEVE KNELL / Long-tailed tit (Aegithalos caudatus rosaceus) adult perched on lichen covered twig, Lancashire, England, UK. March.

STEVE KNELL / Long-tailed tit (Aegithalos caudatus rosaceus) adult perched on lichen covered twig, looking inquisitive, Lancashire, March

STEVE KNELL / Long-tailed tit (Aegithalos caudatus rosaceus) adult perched on lichen covered twig, looking at camera, Lancashire, England, UK. March

STEVE KNELL / Long-tailed tit (Aegithalos caudatus rosaceus) adult perched on lichen covered twig, Lancashire, England, UK. March

STEVE KNELL / Long-tailed tit (Aegithalos caudatus rosaceus) adult perched on bramble, Lancashire, England, UK. March

STEVE KNELL / Long-tailed tit (Aegithalos caudatus rosaceus) adult perched on lichen covered twig, Lancashire, England, UK. March