A comb.
It is called a comb.
It is called a topknot.
It is a topknot. The chonmage is the topknot worn for daily ware. The highest ranking Yokozuna wear the gingko leaf.
They are called roosters.
A group of roosters is called a "flock" or a "crowd."
We usually call them 'roosters'.
The phobia for roosters and chickens is called alektorophobia.
The decorative bow or chignon on the top of the head is commonly known as a "topknot" or "topknot hairstyle." It is a popular hairstyle that involves gathering the hair at the crown of the head and tying it into a bun or knot.
topknot?
Roosters crow.
Male quails are called roosters
Yes, a Hen, otherwise known as a chicken... Male ones are called Roosters or Cockrels