Robin eggs typically take about 12 to 15 days to hatch after the female begins incubating them. The incubation period starts after the last egg is laid, and the eggs hatch in the order they were laid, usually one day apart. Both parents take part in caring for the young once they hatch. Feathers start to grow on the chicks after about three days, and they usually fledge (leave the nest) around 13 to 14 days after hatching. Robins generally begin nesting and laying eggs between mid-April and mid-August, with the exact timing depending on conditions such as weather. They may have multiple broods per year, up to three or more in some cases. In summary:

• Incubation and time to hatching: 12 to 15 days
• Nesting season: mid-April to mid-August
• Number of broods: up to 3 or more
• Time to fledging: about 2 weeks after hatching

This incubation and hatching timing is consistent across American robins and European robins as well.