How do you tell the Light Brahma rooster from the hens?

These Light Brahmas are about 5 months old, we have a hard time telling the roosters from the hens. Has anyone else had Brahmas that could tell me how to

My Light Brahma rooster's evolution. Hatched in the early August. The last photo is from the 10th of December : r/chickens

Light Brahma Hen or Roo? BackYard Chickens - Learn How to Raise Chickens

THESE WILL BE GREAT BIG! – LOCAL PICK UP!, The Lights are gorgeous!, Looking for Roos – click on Roosters

Light Brahma – Hard Run Acres

Brahma Chicken Breed: The Ultimate Guide - My Pet Chicken

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Light Brahmas - Popular Egg Laying Breeds

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Light Brahma Chickens - Baby Chicks for Sale

My 9 week old light brahma started getting pretty red in the face

Hoover's Hatchery

Light Brahma Chickens For Sale