The river at Castleconnell is also known for its rich bird life, and particularly its swans, many of which are migratory Icelandic Whooper Swans wintering and breeding on the river.
Sir Richard was the father of Walter (died 1432) and Uileag Carragh, who were the ancestor of the Burkes of Castleconnell and Brittas, and Burkes of Cois tSiúire, respectively.
Theobald was later created Baron of Brittas in 1618, and Edmund, having established his legitimacy, continued the line of the Barons of Castleconnell.