At sea off the west coast of Ireland, during the summer months.
Leach’s Petrel
Irish Name: | Guairdeall gabhlach |
Scientific name: | Oceanodroma leucorhoa |
Bird Family: | Tubenoses |
Conservation status
Status
Summer visitor to the north-west coast from April to August and passage migrant in autumn.
Identification
A small dark seabird with a white rump. Straight bill with hooked tip and tube shaped nostrils on the upper mandible, giving distinctive bill shape if seen at close range. Nostrils used to excrete salt. A relatively large and long winged petrel with a forked tail. Confusion with European Storm-petrel possible, but larger size, longer wings and centrally divided rump patch (only visible at close quarters) with reduced white on sides and stronger flight action aid separation. Underwings dark, lacking white broad band as in European Storm-petrel. Leach's has long, pale contrasting panel on the upperwing which is diagnostic. Flight is slower and lazier than Storm Petrel.
Voice
Calls from burrow at night, a rattling coo with occastional high calls.
Diet
Taken from the sea. Small fish, plankton, molluscs and crustaceans. Irish breeders feed well offshore at the continental shelf edge.
Breeding
Breeding only proven in one location in Ireland, The Stags of Broadhaven, a spectacular group of small islands off the north Mayo coast. Has been found breeding in the past at other sites, such as the Blasket Islands. A difficult species to survey as it only returns to its nest site, which is concealed under vegetation, after dark.
Wintering
Pelagic, winters at sea in the South Atlantic.
Monitored by
Breeding seabirds are monitored through seabird surveys carried out every 15-20 years.