I really hate to see people who let their parrots out of the cage outside ... bigger ones survived in my country when they flew away and they are destroying now to many plants and fruits. They just don´t belong here in the wild. smaller ones like cockatiels die if they fly away and can´t find their way home. There can also be a cat near by for example. It happend with my budgies when my parents left them alone in the cage on the balcony ...
Oh no, sorry to hear about your budgies thats terrible. I made sure Mellow was supervised when she was out. I wanted her to enjoy a bit of free space and I knew she wouldn't be able to fly because her clipped wings aren't fully back..