BoCCI Red list
- Common Scoter (lowland lakes, mainly found in west)
- Grey Partridge (farmland and bog, localised)
- Hen Harrier (moorland, forestry, upland, mainly in south)
- Corncrake (farmland, localised)
- Roseate Tern (coastal + islands only)
- Red-necked Phalarope (coastal marsh, north-west Mayo only)
- Nightjar (upland + diverse, localised)
- Barn Owl (widespread, buildings)
- Twite (upland and coastal, mainly west)
- Lapwing (farmland)
- Curlew (farmland)
- Ring Ouzel (upland)
- Yellowhammer (farmland)
- Chough (coastal cliffs and caves, mainly west and south coasts)
BoCCI Amber list
- Golden Plover (upland)
- Little Tern (coast and wetlands)
On the IUCN Red List, but not on BoCCI list
- Quail
- Red Grouse
- Black-necked Grebe (extinct in Ireland)
- Corn Bunting (coastal scrub, probably extinct as breeding species)