One clip names both of them

3,884 views between them.

Common Buzzard outweighs Tawny owl 1.6× — 0.8 kg against 0.5 kg. Both figures are averages across males and females.

Tale of the tape

Body mass

0.76 kg

🦅 Common Buzzard · AVONET

0.47 kg

🦉 Tawny owl · AVONET

Maximum lifespan

29 yr

🦅 Common Buzzard · AnAge

22 yr

🦉 Tawny owl · AnAge

Bars are sized against the larger of the two figures.

Animals caught on camera

Real footage of the animals on this site — hunting, fighting, and getting on with it.

Shared ancestry

The closest group they share is Aves (class), home to 18,988 species.

They last shared an ancestor about 82 million years ago.

Estimates range from 74 to 94 million years; the figure above is the middle estimate.

About this estimate

Dates from Jetz, Thomas, Joy, Hartmann & Mooers 2012, Nature 491:444 (CC0).