Egg laying behavior of the common cuckoo (Cuculus canorus): Data based on field video-recordings
- Received Date: 2020-02-22
- Accepted Date: 2020-05-14
- Rev Recd Date: 2020-05-13
- Available Online: 2020-05-21
Abstract: The egg laying behavior of brood parasites is at the heart of studies on their co-evolution with hosts. Updating and reporting more egg laying behavior can improve our perception and insight on the brood parasitism process. During a seven years’ study period, we monitored 455 Oriental reed warbler (Acrocephalus orientalis) nests during the egg laying period, of which 250 were parasitized by common cuckoos (Cuculus canorus). We collected 53 clear videos of cuckoo parasitism, analyzed and recorded all parasitic behavior of cuckoo in details, and summarized the process of brood parasitism by the common cuckoo. Based on analyses of these field video-recordings, we proposed a new explanation for the egg removal behavior, namely the delivery hypothesis, i.e. the egg pecking and biting may facilitate parasitism, which help avoid the host’s attention and reduce host attacks, whilst egg removal is the side effect of egg pecking and biting. We concluded that common cuckoos are able to change their behaviour when hosts are around the nest, they have a set of methods to deal with host attacks and can complete parasitism boldly and smoothly at any time.
|Citation:||Longwu Wang, Guo Zhong, Gangbin He, Yuhan Zhang, Wei Liang. Egg laying behavior of the common cuckoo (Cuculus canorus): Data based on field video-recordings[J]. Zoological Research. doi: 10.24272/j.issn.2095-8137.2020.021|