Handbook: Great tit:
Scientific name: Parus major
Rank: Species
Great tit - Wikipedia
https://en.wikipedia.org/wiki/Great_tit
The great tit (Parus major) is a passerine bird in the tit family Paridae. It is a widespread and common species throughout Europe, the Middle East, Central and ...
Tit (bird) - Wikipedia
https://en.wikipedia.org/wiki/Tit_(bird)
The tits, chickadees, and titmice constitute the Paridae, a large family of small passerine birds ... The genus Parus includes the great tit that ranges from Western Europe to Indonesia. Cyanistes has a European and Asian distribution (The RSPB: Great tit
https://www.rspb.org.uk/birds-and-wildlife/bird-and-wildlife-guides/...a.../greattit/
Great tits are green and yellow with striking glossy black heads, white cheeks and a distinctive two-syllable song. They feed on seeds and scraps either left on