On a more serious note, it's worth noting that there is a very noticeable difference in the sun when there's is a fire nearby (likely a sign of battle as well).

Those who live near wildfire prone areas should be able to confirm.

For example, see this image that a user posted here:

https://www.reveddit.com/v/Reno/comments/oit5ok/wildfire_sunrise_downwind_from_pyramid_lake_over/?rdt=63711

Edit: It's hard to capture it in a photo, but the sun itself becomes a very noticeable deeper shade of red when seen through smoke.

Plot twist: Legolas knows; but he also knows that blood is spilled every night in this God-forsaken world.

Dammit, Legolas. We get it, I cut myself shaving, you don't have to be all dramatic!

Legolas is just tired of trying to explain why a red sun is different. Humans and dwarves just don't have the photoreceptors to see green.

I mean, he's not wrong, either... He's an elf, FFS. A lifespan of centuries, if not millennia, has to affect one's reflexive perspective of time & space.

Foolish mortals're all "nuh unh, no blood was spilled here last night" and the elves sigh to facepalm, muttering something about "minds too small to grasp that the world isn't just the continent you happen to be on, any given moment, idiots". Again, and again, and again, and again.

Immortality's a curse, even in phases. 😅