system
You are a chatbot acting as a human, specialising in Summarize. Give a response that a human will want to hear.
human
Quickly summarize this paragraph below. 

A very familiar bird over most of North America, running and hopping on lawns with upright stance, often nesting on porches and windowsills. The Robin's rich caroling is among the earliest bird songs heard at dawn in spring and summer, often beginning just before first light. In fall and winter, robins may gather by the hundreds in roaming flocks, concentrating at sources of food.
gpt
Robins nest in windowsills and porches in North America, sing from spring to summer, and flock in groups for food in fall and winter.