A shuttlecock (also called a birdie or shuttle) is a high-drag projectile used in the sport of badminton. It has an open conical shape formed by feathers (or a synthetic skirt) embedded into a rounded cork or rubber base.
Types of Shuttlecocks:

Feather Shuttlecocks

Made from 16 goose or duck feathers
Used in professional matches (better flight, speed, and control)
More expensive and less durable

Synthetic/Nylon Shuttlecocks

Made from plastic or nylon skirt
More durable and affordable
Used in casual play and training

Key Features:

Aerodynamics: The feathers/skirt create drag, making it slow down quickly.
Speed & Flight: Affected by temperature, humidity, and altitude.
Durability: Feather shuttles break easily, while nylon ones last longer.

Badminton Rules Related to Shuttlecocks:

A shuttlecock must weigh between 4.74 to 5.50 grams.
It should have 16 feathers (if feather-based).
Players can test shuttlecock speed by hitting it at a full underhand stroke—it should land within a marked area on the court.

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