Irish Poetry
https://www.poetryfoundation.org/poetrymagazine/poems/48662/irish-poetry
The 2006 poem "Irish Poetry," originally published in Poetry magazine, is another Billy Collins poem that focuses on Ireland. Here, Collins gently ribs traditional Irish poetry while adding his own take on the distinguished literary tradition in Ireland.
Billy Collins as Soul Friend
https://www.irishamerica.com/2001/10/billy-collins-as-soul-friend/
This article discusses Collins' experience teaching a poetry workshop in rural Ireland, which may have inspired the setting of "Afternoon with Irish Cows."
The Best Cigarette - Billy Collins
https://archive.org/details/BillyCollinsTheBestCigarette/04_Afternoon_with_Irish_Cows.mp3
This is an archived audio recording of Billy Collins reading his work, including "Afternoon with Irish Cows" (track number 4).
Seeing the natural world: Comhbhá an Dúlra
This literary essay discusses the theme of nature in Gaelic poetry.