no locality = France.
Race holbollii has occasionally been treated as separate species. Isolated E Siberian population may represent a separate race, for which the name bergmani is available#R. Two subspecies recognized.
One or two pairs (grisegena) have nested at Lac d’Orient, Aube, France, since about 2005#R
Food and feeding
Status and conservation
Only subscribers are able to see the bibliography. Login or Subscribe to get access to a lot of extra features!