## Common ground
All options are bird feeders categorized by their primary material.
## Options at a glance
**3926.90 – Plastic**
- **Defining trait:** Made from synthetic polymer resin, often lightweight and weather-resistant.
- **Typical examples:** Hanging plastic tube feeders, seed dispensers with built-in perches.
- **Best fit when:** Durability in wet conditions and low cost are priorities.
**4421.99 – Wood**
- **Defining trait:** Crafted from natural wood, often handcrafted or rustic in design.
- **Typical examples:** Log-shaped feeders, wooden platforms with slats for perching.
- **Best fit when:** A natural aesthetic and eco-friendly appeal are desired.
**6914.10,6914.90 – Ceramic**
- **Defining trait:** Made from fired clay, typically non-porous and heat-resistant.
- **Typical examples:** Glazed ceramic hopper feeders, decorative bird baths with feeding trays.
- **Best fit when:** Long-term outdoor use and visual appeal are key.
**7326.20,7326.90 – Iron or Steel**
- **Defining trait:** Constructed from metal, usually rust-resistant or coated for durability.
- **Typical examples:** Iron wire mesh feeders, steel hanging baskets with seed trays.
- **Best fit when:** Strength and resistance to animals (e.g., squirrels) are needed.
## Key differences
| Feature | Plastic | Wood | Ceramic | Iron/Steel |
|------------------|---------------|--------------|----------------|----------------|
| Durability | Moderate | Low–Moderate | High | Very High |
| Weather Resistance | Good | Poor (rots) | Excellent | Good (if coated) |
| Aesthetic | Modern, simple| Natural | Decorative | Industrial, rustic |
## How to choose
- Is the feeder made of synthetic plastic? → 3926.90
- Is it made from natural wood? → 4421.99
- Does it look like glazed pottery or clay? → 6914.10,6914.90
- Is it metal, especially iron or steel? → 7326.20,7326.90
## Overlaps & pitfalls
A feeder could combine materials (e.g., ceramic base with metal hanging wire), but the **primary material** determines classification. If unclear, prioritize the largest or most visible component. No option is inherently superior—choose based on function and environment