Heya, So story is there was a light above my car in the car park that was replaced, the electricians chucked the old light in the bin, I thought I had heard birds around there before, but figured it was just adult sparrows hanging out, but it turns out there was 3 chicks in the light frame, in the bin! So I opened the light and took the nest out, and put the nest in a box. My problem now is, how do I make the mum come back to the nest to feed these tiny things? They keep chirping and opening their mouths at me and I keep saying "I can't feed you guys". Obviously they don't understand me. I called the vet and when I said I think they are sparrows because I've seen a sparrows around they said they won't take them in because they are pests/invasive species . Only advice i got was to try put the nest back where it was. The box with the nest inside is about 3-4 metres away from the original nest on my balcony, will the muma bird come back and find them in the box? Can she identify their chirps? I don't want them to die because it will be my fault for getting the light changed/fixed! Bird lovers, halp! Here's a pic of the chicks: They are sparrows right?