In Virgil, Scylla, the daughter of Nisus, is confused with the sea-monster, the daughter of Phorcys.
Nisus was the eponymous hero of the harbour of Nisaea, and local tradition makes no mention of his betrayal by his daughter.
According to Roscher (in his Lexikon der Mythologie), who identifies the ciris with the heron, the story of Nisus and Scylla (like these of Acdon, Procne, Philomela and Tereus) was invented to give an aetiological explanation of the characteristics of certain birds.
Sparrowhawk accipiter nisus Up to 3 females seen on the trip.
Barn swallows (Hirundo rustica) were hunted by a Sparrow hawk (Accipiter nisus).