What are honey guides?

Explanation

**Step-by-Step Text Solution:**

1. **Definition of Honey Guides**: Honey guides are a type of bird known for their unique behavior of leading humans to bee colonies. They are classified as passerine birds.

2. **Taxonomic Classification**: These birds belong to the order Piciformes, which includes woodpeckers and their relatives.

3. **Common Names**: Honey guides are also referred to as indicator birds or honey birds, highlighting their role in indicating the location of honey.

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