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 at a hopeless disadvantage. Unable either to strike back or to resist, and mindful of his responsibilities, he would relinquish the prize and fly back home to feed his mate on what he could disgorge from his crop. After two experiences of this sort he gave up attempting to carry anything home in his beak and contented himself with what his pouch would hold. Thereupon the eagle, no longer tempted by the sight of an actually visible prey and marking the long, black beak all in readiness to strike, gave up molesting him. But the rest of the colony, less wary and quick-witted than the black fisherman, were continually being forced to pay tribute to the robber king. When their eggs were hatched, both parents were kept busy, the four youngsters being voracious beyond even the usual voracity of nestlings. At first they were but blind, stark-naked, ink-black, sprawling bundles of skin and bone, their great beaks ever wide open in demand for more, more, more. Their tireless parents had not only to catch, but also to half digest their food for them, pumping it into their throats from their own stomachs, which were thus kept working at high pressure.

As the nestlings grew—which they did with great rapidity—their appetites increased in proportion and when their eyes opened there was