摘要
Birds are well known as a taxon of animals that use their wings to fly,lay hard-shelled and colorful eggs,and build elegant nests(Gill 1995).Bird nests are important because they provide safe and suitable places to incubate eggs and/or rear offspring.However,bird nests vary from simple nests to those with complex materials and structures(Hansell 2000).
基金
This work was funded by the National Natural Science Foundation of China(No.32260127).
