If the standard for the largest owl is based on the heaviest single specimen, which owl might take the title over the Eagle-Owl?

Answer

Blakiston's Fish Owl

If the standard involves the heaviest single specimen, the title might lean toward the Blakiston's Fish Owl, as mature males are adapted for fishing and may carry denser musculature.

If the standard for the largest owl is based on the heaviest single specimen, which owl might take the title over the Eagle-Owl?
birdsizeowlEurasian Eagle-owl