Admixed singing Phylloscopus sp? England (May 2008)

Above: Edited clips of admixed Willow Warbler/Chiffchaff singer (Old Woking, Surrey, 10 May 2008).

In much of the video, the bird is not actually in the picture! However, if you turn up your volume, the audio is quite clear. In the stills below, the exposure has been 'pushed' in order to elucidate wing structure and other structural and plumage details. If you have any convictions about the identity or provenance of this phyllosc, I'd be pleased to hear from you.