Your dream about the hoopoes and the interaction with your cat could symbolize various aspects of your life. Here are some interpretations to consider:

1. Joy and Connection with Nature: The happiness you felt upon seeing the hoopoes may reflect a desire for connection with nature or a longing for beauty and joy in your life. The fact that you hadn't seen them for years suggests that this joy may be rare or something you cherish deeply.
2. Vulnerability and Protection: The hoopoe being caught by your cat symbolizes vulnerability, perhaps representing something in your life that you feel is at risk or needs protection. Your instinct to save the bird indicates a nurturing side to your personality, suggesting you care for those who may be vulnerable around you.
3. Concerns about Safety: Your efforts to keep the cat inside and to cover the tree stump indicate a desire to create a safe environment, whether for yourself or others. This could reflect a concern you have in your waking life about protecting something or someone from harm.
4. Barriers and Solutions: The holes in the fence may symbolize obstacles or challenges in your life that disrupt your sense of security or safety. Your creative thinking about how to address these issues shows that you are proactive and resourceful when faced with challenges.

In summary, this dream may be encouraging you to pay attention to your surroundings, consider the vulnerabilities in your life, and think of ways to create a safe space for yourself and others. It could be a reminder to nurture joy and beauty while also being mindful of the challenges that may arise.