Here's some info on what robins eat:
http://www.wildbirdsforever.com/robin.html
I would offer a wide variety of food, and the main thing is that once you start, you can't stop, not even for a day. They will be raising more babies than naturally possible and relying on the extra food. Without it the babies will starve. I would start extra food now, the parents are already working hard and you want as much weight on them as possible for when those babies hatch.
I would also put a bin with a towel in it under the nest, so if a baby falls out it is soft. Even if a couple babies had to be removed at a week old, they have a much better chance of survival.
http://www.wildbirdsforever.com/robin.html
I would offer a wide variety of food, and the main thing is that once you start, you can't stop, not even for a day. They will be raising more babies than naturally possible and relying on the extra food. Without it the babies will starve. I would start extra food now, the parents are already working hard and you want as much weight on them as possible for when those babies hatch.
I would also put a bin with a towel in it under the nest, so if a baby falls out it is soft. Even if a couple babies had to be removed at a week old, they have a much better chance of survival.
