Migratory birds fly to far away places because of ____ _ changes.

Explanation

**Step-by-Step Solution:**

1. **Understanding Migratory Birds**: Migratory birds are species that travel long distances from one location to another, often following a seasonal pattern.

2. **Identifying the Reason for Migration**: The primary reasons for migration include the search for food, breeding grounds, and suitable habitats.

3. **Considering Environmental Factors**: One of the significant factors that influence the migration of birds is the climate. Changes in climate can affect food availability, breeding conditions, and overall habitat suitability.

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