... E'en thus the water-fowl, when she perceives The falcon near, dives instant down, while he Enrag'd and spent retires. That mockery In Calcabrina fury stirr'd, who flew After him, with desire of strife inflam'd; And, for the barterer had 'scap'd, so turn'd His talons on his comrade. O'er the dyke In grapple close they join'd; but th' other prov'd A goshawk, able to rend well his foe; And in the boiling lake both fell. The heat Was umpire soon ... — Literary Remains (1) • Coleridge