Brood Parasitism on Pnoepyga pusilla by Cuculus poliocephalus in Kuankuoshui Nature Reserve, Guizhou, China
During the breeding season from April to August 2015, one case of brood parasitism on pygmy wren babbler (Pnoepyga pusilla) by lesser cuckoo (Cuculus poliocephalus) was observed in Kuankuoshui National Nature Reserve,Guizhou, southwestern China.The parasitized nest with one chocolate cuckoo egg and three white babbler host eggs were found at the late incubation period.The cuckoo egg mass was 2.55 g and egg volume was 2.72 cm3, while the babblers' egg mass was 1.64 g±0.16 g and egg volume was 1.65 cm3 ±0.08 cm3(n =7).Egg reflectance analysis showed that egg hue and chroma of the pygmy wren babbler were significantly different with those of lesser cuckoo, and therefore lesser cuckoo will lay a highly non-mimetic egg in its babbler host' s nest.This was the second report of interspecific brood parasitism on pygmy wren babbler by lesser cuckoo, and suggested that pygmy wren babbler may be one of the suitable hosts for lesser cuckoo.
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万方数据
维普
