11 Apr '11, 3am

Male Swan Holds Vigil at Nest After Teens Kill His Mate

Melbourne Zoo ornithologist Glen Ericson said the father would be lost without its partner, as swans form strong bonds and share incubation. "It would be a very difficult task for one bird to take that task on its own, because they have to leave the nest to feed," he said. And Zoo curator Peter Courtney said the father would be unable to leave the nest for extended periods to feed. "If the parent bird leaves the nest for an hour or up to two hours to feed, the eggs may remain viable - they're fairly large eggs and won't chill down," he said. But if the father was to leave the nest for half a day, which is normal when a pair care for the eggs, the eggs would be less likely to survive, he said.

Full article: http://www.treehugger.com/files/2011/04/male-swan-holds-v...

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Male Swan Holds Vigil at Nest After Teens Kill ...

treehugger.com 11 Apr '11, 3am

Melbourne Zoo ornithologist Glen Ericson said the father would be lost without its partner, as swans form strong bonds and...