means A small songbird with a reddish-orange breast — either the European robin or the larger, unrelated American robin named after it — commonly seen hopping across lawns and gardens.

from From Old French Robin, a pet form of the name Robert, the same way 'jenny wren' and 'jackdaw' tuck human names into birds. The bird was once called the 'redbreast,' and people affectionately tacked on 'Robin' as a nickname — 'robin redbreast' — until the first name simply took over. When English settlers reached America and met a different bird with the same warm-colored breast, they fondly called it a robin too, which is why the two are cousins in name only, not in family.