Though nearly ready to lay her eggs, the unrested female sets to work to build a new nest as quickly as she can. But the strain this puts on her is in itself part of the reason for the birds 'low success rate in rearing chicks.
但寶寶急著呱呱墜地，母鳥在欠缺休息的情況下趕工，另築新巢，也埋下低育雛率的因子。