To mark this day, here are some links I came across from reading tributes to Seamus Heaney. The radio podcasts may only be only available for a few days.
Seamus Deane on growing up with Seamus Heaney (The New Yorker) see page 54 here
Videos of Seamus Heaney reading some of his poems (Irish Times) here
Poetry Please, BBC Radio 4 (podcast) here
Arts Extra Tribute, Radio Ulster (podcast) here
A lovely post from Belinda McKeon in The Paris Review here
Colim Tóibín in The Guardian here
Eileen Battersby in The Irish Times here