Common chiffchaff point, appears to be used to advertise an established territory and contact the female, rather than as a paternity guard strategy. Beyond the core territory, there is a larger feeding range which is variable in size, but typically ten or more times the area of the breeding territory. It is believed that the female has a larger feeding range than the male. After breeding has finished, this species abandons its territory, and may join small flocks including other warblers prior to migration. The male common chiffchaff returns to its breeding territory two or three weeks before the female and immediately
A Photographic Guide to the Birds of Indonesia Berkeley Books Pte Ltd. The second edition involved a total revamp of the material; a new checklist was used on the basis of "The Clements Checklist of Birds of the World 6th Edition" from 2007. This list has 1,605 bird species for Indonesia, while the 1992 list had 1,534. It also uses the ‘buntings last’ sequence which means that the Indonesian book now uses the same sequence as the companion volume "A Photographic Guide to the Birds of Southeast Asia". However, while "Southeast Asia" came out in 2012 with just a new cover and imprint, "Indonesia" came out that year