Purple swamphen (Porphyrio porphyrio)

Classification: Genus Porphyrio (Porphyrio); Family Rails (Rallidae)
This bird appears across the great seas in the following continents: Europe, North America, Africa.
Vocalization: Rich repertiore and very vocal. Sounds range from soft, mewing and laughing to hard, extremely shrill trills. Generally louder, and shriller than congeners. Often merges into, or starts with diagnostic, extremely hard trill "krrrrriiit". [Link]
Physical details: length=45-50 cm, wingspan=90-100 cm, weight=520-1000 g

🔍 No documented observation