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Migration Calendar

Atlantic Salmon Spawning may still be happening in rivers and streams in Ireland
Barnacle Goose Feeding on the Inishkeas, Co. Mayo and other sites in Ireland
Basking Shark Wandering the oceans off-shore
European Eel Feeding in our lakes and rivers out of sight
Fin Whale Frequently spotted in Irish waters
Gannet Feeding in the open ocean
Humpback Whale Peak time for Humpback whales off our Southern Coast
Manx Shearwater Feeding at their wintering grounds off the Argentine & Brazilian coast
Painted Lady Butterfly Feeding in Morocco
Swallow Feeding in their wintering grounds in South Africa
Atlantic Salmon Salmon eggs are developing in the gravel. Older Salmon called Smolts begin to go to sea
Barnacle Goose Feeding in Ballintemple, Co. Sligo and other sites in Ireland
Basking Shark Wandering the oceans off-shore
European Eel Feeding in our lakes and rivers out of sight
Fin Whale Frequently spotted in Irish waters
Gannet Feeding in the open ocean, small numbers begin to arrive in Ireland
Humpback Whale Breeding off the Cape Verde Islands
Manx Shearwater Leave South American waters to travel north towards Ireland
Painted Lady Butterfly Breeding in Morocco. Small numbers begin to leave and travel North
Swallow Feeding in their wintering grounds in South Africa
Atlantic Salmon Salmon eggs begin to hatch into Alevins. Older Salmon called Smolts go to sea
Barnacle Goose Feeding on the Inishkeas, Co. Mayo and other sites in Ireland
Basking Shark Wandering the oceans off-shore
European Eel Small numbers of elvers may be spotted arriving from the Sargasso sea
Fin Whale Sightings infrequent in Irish waters
Gannet Begin to arrive to their breeding colonies in Ireland
Humpback Whale Breeding off the Cape Verde Islands
Manx Shearwater Small numbers begin to arrive on our shores
Painted Lady Butterfly Leave Morocco and head towards Ireland
Swallow Leave South Africa to travel north towards Ireland
Atlantic Salmon Salmon eggs are hatching into Alevins
Barnacle Goose Leave Ireland for Greenland, stopping in Iceland along the way to feed
Basking Shark Sightings off the Irish coast are frequent
European Eel Tiny elvers arrive in Ireland from the Sargasso sea
Fin Whale Sightings infrequent in Irish waters
Gannet Arrive in great numbers to their breeding colonies in Ireland
Humpback Whale Breeding off the Cape Verde Islands
Manx Shearwater Begin to arrive on our shores for the forth-coming summer season
Painted Lady Butterfly Leave Morocco and head towards Ireland
Swallow Arrive in Ireland and start to build their nest
Atlantic Salmon Alevins feed in the rivers and streams and begin to turn into Fry
Barnacle Goose Arrive in Greenland
Basking Shark Sightings off the Irish coast are frequent
European Eel Elvers may still be seen arriving from the Sargasso sea
Fin Whale Sightings infrequent in Irish waters
Gannet Their colonies are now packed and breeding has started
Humpback Whale Sightings infrequent in Irish waters
Manx Shearwater Arrive on our shores, make their nest and lay their eggs
Painted Lady Butterfly Arrive in Ireland in great numbers
Swallow Raising their young chicks in Ireland
Atlantic Salmon Young Salmon have turned to Fry and can swim freely
Barnacle Goose Lay their eggs and raise their chicks in Greenland
Basking Shark Sightings off the Irish coast are frequent
European Eel Feeding in our river and lakes
Fin Whale Sightings infrequent in Irish waters
Gannet Colonies, or "Gannetries" are at their busiest as this is the peak breeding season
Humpback Whale Sightings infrequent in Irish waters
Manx Shearwater Chicks are born and parents are busy caring for them
Painted Lady Butterfly While more arrive, those that arrived here in May have laid eggs and caterpillars develop
Swallow Raising their young chicks in Ireland
Atlantic Salmon Adult Salmon return to our shores from a long time at sea
Barnacle Goose Chicks & parents feed on fresh green shoots in Greenland
Basking Shark Sightings off the Irish coast are frequent
European Eel Feeding in our river and lakes
Fin Whale Sightings infrequent in Irish waters
Gannet Colonies, or "Gannetries" are at their busiest as this is the peak breeding season
Humpback Whale Sighting become more frequent in Irish waters
Manx Shearwater Chicks continue to be cared for by their parents
Painted Lady Butterfly Small number of butterflies are still arriving in Ireland, new butterflies emerging
Swallow Raising their young chicks in Ireland
Atlantic Salmon Adult Salmon arrive back to our coast and begin to make their way upstream
Barnacle Goose Chicks & parents feed on fresh green shoots in Greenland
Basking Shark Sighting off the Irish coast are frequent
European Eel Feeding in our river and lakes.
Fin Whale Sightings become more frequent in Irish water
Gannet Leave Ireland for their wintering grounds off West Africa, in the Mediterranean etc.
Humpback Whale Sightings become more frequent in Irish waters
Manx Shearwater Adults leave their burrows and head to sea for their migration, Chicks emerge from burrow
Painted Lady Butterfly Still a regular sight in Ireland
Swallow Raising their young in Ireland
Atlantic Salmon Adult salmon begin to make their way upstream to their spawning grounds
Barnacle Goose Chick & parents leave Greenland for Ireland, stopping in Iceland along the way
Basking Shark Sightings off the Irish coast are frequent
European Eel Start to prepare for their long migration back to the Sargasso sea
Fin Whale Frequently spotted in Irish waters
Gannet All have left Ireland and have reached their wintering grounds off West Africa, in the Mediterranean etc.
Humpback Whale Sightings become more frequent in Irish waters
Manx Shearwater Chicks head to sea on their own and fly towards the South American coast
Painted Lady Butterfly Large numbers are migrating back to Morocco
Swallow Gather in large flocks in preparation for their long migration to South Africa
Atlantic Salmon Adult salmon are making their way upstream to their spawning ground
Barnacle Goose All Geese arrive in Ireland for the winter season
Basking Shark Wandering the oceans off-shore
European Eel Turn to Silver eels and on dark nights leave Ireland and head towards the Sargasso sea
Fin Whale Frequently spotted in Irish waters
Gannet Feeding at their wintering grounds off West Africa, in the Mediterranean etc.
Humpback Whale Frequently spotted in Irish waters
Manx Shearwater Some birds have reached their wintering grounds, other are en-route
Painted Lady Butterfly Feeding in Morocco
Swallow Leave Ireland and migrate to South Africa
Atlantic Salmon Adult salmon have reached their spawning grounds and are waiting for the perfect conditions for spawning
Barnacle Goose Feeding in Ballintemple, Co. Sligo and other sites in Ireland
Basking Shark Wandering the oceans off-shore
European Eel Some are still leaving Ireland, and many are on their way to the Sargasso sea
Fin Whale Frequently spotted in Irish waters
Gannet Feeding at their wintering grounds off West Africa, in the Mediterranean etc.
Humpback Whale Peak time for Humpback whales off our Southern Coast
Manx Shearwater Feeding at their wintering grounds off the Argentine & Brazilian coast
Painted Lady Butterfly Small number of butterflies will be breeding Morocco
Swallow Feeding in their wintering grounds in South Africa
Atlantic Salmon Peak month for Salmon spawning in our rivers and streams high in the mountains
Barnacle Goose Feeding on the Inishkeas, Co. Mayo and other sites in Ireland
Basking Shark Wandering the oceans off-shore
European Eel Adult eels are making their way to the Sargasso sea
Fin Whale Frequently spotted in Irish waters
Gannet Feeding at their wintering grounds off West Africa, in the Mediterranean etc.
Humpback Whale Peak time for Humpback whales off our Southern Coast
Manx Shearwater Feeding at their wintering grounds off the Argentine & Brazilian coast
Painted Lady Butterfly Small number of butterflies will be breeding in Morocco
Swallow Feeding in their wintering grounds in South Africa