Northern harrier / Kornweihe (Circus cyaneus)

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Unklares Bild von entfernter Kornweihe beim Kraftwerk neben Albufera. 2022-04-12 13.11.40 Mallorca
Classification: Genus Harriers (Circus); Subfamily True hawks (Accipitrinae); Family Accipitridae
Deutschland: Brut-, Jahres-, Zugvogel, Wintergast RL 1
Vocalization:

Mostly heard at breeding ground. [Link]
Calls:

Calls with quite soft series of "ke-ke-ke-ke". Also a wailing, squealing whistle, with emphasized first syllable. [Link]
Physical details: length=44-52 cm, wingspan=100-120 cm, weight=300-600 g
Habitats: Agricultural

First documented observation : 2022-04-12 in Mallorca.