Definition of "redbreast"

Any of several unrelated birds that have a red breast

1. A European robin, Erithacus rubecula.  quotations  examples

   Quotations

   • There was a pleasant frosty sun glittering through the twigs of the leafless shrubs, and flashing on the ripples and undulations of the Liffey, and the redbreasts and sparrows were picking up the crumbs which the housekeeper had thrown for them outside.

     1863, J[oseph] Sheridan Le Fanu, The House by the Church-yard. […], volumes (please specify |volume=I to III), London: Tinsley, Brothers, […]

   • I felt comforted by the song of the redbreast, and I thought I felt less lonely and deserted as long as I heard the merry notes of the thrush.

     1886, Peter Christen Asbjørnsen, translated by H.L. Brækstad, Folk and Fairy Tales, page 281

2. An American robin, Turdus migratorius.  examples