郑州城区鸦科Corvidae混群鸟冬季集群栖宿调查

Investigation on Roosting Territory of Birds Population of Corvidae Living Together in Winter in Urban Areas of Zhengzhou

1998-2004年连续6年冬季,在郑州城区进行鸦科Corvidae混群鸟大集群栖宿的调查,共记录该混群鸟5个种群,大集群 栖宿数量迭10 000只以上,显示了郑州城区鸦科Corvidae混群同属鸟类冬季大集群栖宿的季节性和种群数量的多样性与高智力、高 密度、大领域、大集群越冬栖宿领域行为及领域回归行为。

An investigation on roosting territory of birds population of corvidae living together has been conducted in the successive six years from 1998 to 2004 and 5 populations have been recorded in all the number of the birds conies up to over 10 000, which shows the features of seasonal character and quantitative diversity of population as well as high intelligence , heavy density, wide territory, the behavior of territory of big population during winters and the regressive behavior on roosting territory of corvidae living together belongs to the same genus in urban areas of Zhengzhou.