The amount definitely and consumedly exceeds mankind

Large numbers of death are no wonder
Global existing 9000 various birds, if do a"census" to the bird in the world, the amount definitely and consumedly exceeds mankind.Eastern college of life science in the Normal University in China professor and ecosystem academics set director and Shanghai City animal academic association pair chairman of the board Wang Tian Hou say, the birds have 10% to 20% death rate annually and change residence avian death rate higher.Is also say, there are hundred million bird dyings on the earth annually.
Professor Wang Tian Hou says that collectively dying the animal in the affairs mostly in the near future is migration."With change residence birds for example, the long distance flight results in of the huge physical strength consume and plus storm, hail, and current of air...etc. bad weather, many migratory birds will be buried ocean.Even if arrive destination smoothly, they may also change because of the habitat environment, short of food, reasons such as weather, disease and travel weariness from overwork etc. death."Wang Tian Hou announces in 1986 of a research achievement have been already suggested, the migratory bird taking off from the Australia usually "fly directly to" Shanghai and fly to be apart from as long as more than 5000 kilometers all don,t stop Xie not, the weight will reduce 70% while arriving destination."Many birds after falling to the ground tired must stand to all stand unsteady, if can not take a meal and cause right away large numbers of death, also Be getting noer wonder."