Species Detail - Black Guillemot (Cepphus grylle) - Species information displayed is based on all datasets.

Terrestrial Map - 10km

Distribution of the number of records recorded within each 10km grid square (ITM).
Live Map

Marine Map - 50km

Distribution of the number of records recorded within each 50km grid square (WGS84).
Live Map
Cepphus grylle
Black Guillemot
NBNSYS0000000376 RecommendedWell-formed
Protected Species: Wildlife Acts || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List
cegry
(Linnaeus, 1758)
Bird
Species
12184
367
130
22/07/1962
21/09/2025
1 January (recorded in 2003)
31 December (recorded in 2010)
National Biodiversity Data Centre, Ireland, Black Guillemot (Cepphus grylle), accessed 18 December 2025, https://maps.biodiversityireland.ie/Species/10184

Records per month (across all datasets)

Records per year (across all datasets)