Okay, based on your very detailed description, you are likely referring to an ad for SOS Children's Villages. It's a very common ad format they use and triggers strong emotional responses, as you experienced.

Here's a breakdown of why your description matches this ad type:

• Brown/Dark Yellow Bird: This matches the coloring of many common bird species used in these kinds of animations.
• White Eggs with Black Spots: Again, this is a typical depiction of bird eggs.
• Nest of Dark Brown Sticks on Grey Metal Roof: This detail of the metal, wavy roof is a strong indicator, as it's a specific visual often employed.
• Sudden Storm and Loss of Eggs: This is the core emotional narrative of the ad - the loss of security and home, mirroring what children in vulnerable situations experience.
• Emotional Impact: You mentioning crying is very typical; these ads are deliberately designed to evoke empathy and motivate donations.

Why this ad is so impactful:

• Vulnerability: The helpless bird, the fragility of the eggs, and the suddenness of the storm create a powerful sense of vulnerability.
• Loss of Security: The ruined nest symbolizes the loss of safety, home, and family. This resonates deeply with human emotions.
• Universality: The bird and the nest are universal symbols of family and security, making the message accessible to everyone, regardless of background.
• Guilt: It also is made to make viewers feel guilt so they want to do something to prevent what happened from ever happening to another bird again, even though the commercial does not mention the organization, it is still a very effective way of getting the emotions across.

Finding the exact ad:

It is hard to find the exact advertisement you are talking about without seeing it myself. However, this is one of the ads they use that sounds like the one you are describing.

https://www.youtube.com/watch?v=gQv1i92f6e8

Please Note: I understand your emotional response. These ads are designed to be emotionally moving. If you find yourself deeply distressed by them, it's okay to skip them or take a break from watching.

I hope this information is helpful!