When your grass loses its nutrients, after the first frost, you will need to supplement with hay. Watch them carefully and keep their weight correct. Once overweight, they look and feel bad and it is difficult to trim them down. It is very important that donkeys have an iodized salt and mineral block at all times. It is a good idea to put a halter on a new foal the first week after birth.
Foals are very receptive to learning.
You can push your foal, by the lead line, a step to the right or to the left. Hold the lead line and go with the foal as she follows her dam. Very young foals can be successfully introduced to obstacles, so they will have very little fear. They can be taught to cross bridges, walk over logs, carry noisy sacks filled with cans, etc. It is unusual for a donkey to kick at a person, but they will kick at each other while they are eating.