Well, its definitely a Chiffchaff

Here we go again.  What appears to be the same 'Siberian' Chiffchaff has shown up at Marston Sewage Works today.  I wasn't quite expecting to bump in to one but like last year, this bird appeared just as I tried playing the the call of tristis.  However it really didn't seem very interested in the recording - perhaps coincidence?

So, it looks like the same interesting individual as last year and also sounds like the same too.  Below is a snippet of calls I managed to get with my Remembird.  It sure does sound the same.  That is to say, not right for tristis, but very much more collybita in tone - listen to the clip and have a look at the sonogram below.  I really think this bird needs ringing and a feather being sent off.  Maybe it's one of those mythical abietinus...

Here are links to previous posts about this bird:
http://steveblain.blogspot.co.uk/2014/03/95-tristis.html
http://steveblain.blogspot.co.uk/2014/01/that-chiffchaff-again.html
http://steveblain.blogspot.co.uk/2014/01/iffy-chiffy.html