A bird cage with dimensions of 77x46x133 cm is quite spacious and ideal for medium to larger birds, such as cockatiels, conures, or small parrots. Here are some tips for setting it up effectively:

1. Vertical and Horizontal Space: Use both the height and width by adding multiple perches at different levels and across the cage. This encourages climbing and exploration.

2. Toys and Enrichment: Include a variety of toys to stimulate your bird mentally. Look for foraging toys, swings, and chewable items to keep them engaged.

3. Feeding and Water Stations: Set up multiple feeding and water dishes at various heights to encourage movement and interaction. Ensure they are easily accessible.

4. Safe Hiding Spots: Add small shelters or covered areas where your bird can retreat and feel secure.

5. Cleaning Ease: Choose a cage with a removable tray and accessible doors for easy cleaning. Regular maintenance is essential for a healthy environment.

6. Placement: Position the cage in a well-ventilated area with indirect sunlight to avoid overheating while ensuring your bird gets natural light.