However, this theory is less observational; that, IMO, makes it a better one, even if the maximum height it predicts is of by 10% or so.
In fact, that is fairly typical for scaling laws. For example, bumblebees and swans are outliers in the field of flying insects, respectively flying birds. That is why, in those circles, a standard joke is that bumblebees cannot fly, and swans can fly, but cannot take off from the ground.
Iirc albatrosses actually can't take off from the ground. They need to jump off a cliff with an updraft. So they're very careful about where they land.
Having now gone back and researched that a little better, it's only Waved Albatrosses I was thinking of and sources seem to disagree on whether they can take off from flat ground or not. They certainly prefer a cliff, and will make a long walk to get to one if necessary.
However, this theory is less observational; that, IMO, makes it a better one, even if the maximum height it predicts is of by 10% or so.
In fact, that is fairly typical for scaling laws. For example, bumblebees and swans are outliers in the field of flying insects, respectively flying birds. That is why, in those circles, a standard joke is that bumblebees cannot fly, and swans can fly, but cannot take off from the ground.