SymbiosisSymbiosis
Eurasian Blue Tit
Charles J. Sharp / CC BY-SA 4.0

Bird · Paridae

Eurasian Blue Tit

Cyanistes caeruleus

Bird call

© Adrien Peillon / XC1151733 / https://creativecommons.org/licenses/by-nc-sa/4.0/

Facts

Habitat
Deciduous woodland, parks, gardens, hedgerows
IUCN status
LC (Least Concern)
Wingspan
~19 cm
Eurasian Blue Tit plumage
Plumage · (c) Ondřej Křivan, some rights reserved (CC BY)

Ecological relationships

Feeds on

  • Pedunculate OakQuercus robur

    Nestling diet is dominated by oak caterpillars during the critical growth window. Blue Tit breeding phenology has evolved to synchronise with oak bud-burst - a flagship example in climate change ecology (Visser et al.; Charmantier et al. 2008).