Horned grebe / Ohrentaucher (Podiceps auritus)

Horned grebe, Myvatn, Iceland. 2015-06-05 11.22.28 Iceland
Classification: Genus Podiceps; Family Grebes (Podicipedidae)
This bird appears across the great seas in the following continents: Europe, North America.
Deutschland: Brut-, Zugvogel, Wintergast RL 1
Vocalization: Varied. Vibrating, wailing, dry and cackling sequences. A mewing, falling and far-reaching "kiaa" and various rattling sounds. [Link]
Physical details: length=31-38 cm, wingspan=46-55 cm, weight=364-449 g
Habitats: River and lake

First documented observation : 2015-06-05 in Iceland.