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Species accounts: divers

Red-throated Diver  Gavia stellata

 

Common winter-visitor and passage-migrant; scarce in summer.

 

Mainly occurs September-May; occasionally recorded June-August. Widespread along the Waterford coast.  The largest concentrations (over 100 birds on occasion) have occurred in Tramore Bay.  Several inland records.

 

 

 

Black-throated Diver  Gavia arctica

 

Rare, but probably annual, winter-visitor and passage-migrant.

 

One 19th century record, then no confirmed records until 1978.

 

 

 

Great Northern Diver  Gavia immer

 

Common winter-visitor and passage-migrant, mainly October-April; occasionally recorded in summer.

 

Widespread along the Waterford coast.  The main concentrations have occurred at Dungarvan Harbour, Clonea Strand and Tramore Bay.  Perhaps more frequently recorded than Red-throated Diver, but the largest concentrations have not exceeded about 40 birds. 

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