Here flew and perch'd, there swam and dived at pleasure;
Watchful and agile, uttering voices wild
And harsh, yet in accordance with the waves
Upon the beech, the winds in caverns moaning,
Or winds and waves abroad upon the water.
Some sought their food among the finny shoals,
Swift darting from the clouds, emerging soon
With slender captives glittering in their beaks;
These in recesses of steep crags constructed
Their eyries inaccessible, and train'd