JHDraytonbassettpits
Well-known member
New Chiffchaff Details
http://birdingfrontiers.com/
In the area of Hartshill sewage works today I saw a Chiffchaff of the plumage as labellled abientinus in the New Collins guide. With new information this bird could be an abientinus (however they are deemed at present to be rare in Britain in winter) a Western Siberian Chiffchaff or a pale collibita ( subspecies that breeds in Britain), it called like Collibita and so do abientinous and Western Siberian Chiffchaff.
Eastern Siberian Chiffchaffs we know as tristis and fluvescents (which have distinct call notes and song).More details will be published on the internet shortly.
Regards, John
http://birdingfrontiers.com/