You will find few pics on Basra Reed Warbler (
Acrocephalus griseldis) in the follow links, which is appr. same size as Clamorous (
A. stentoreus)or Oriental Reed Warbler (
A. orientalis). It does not look bigger Acro in many views...
It's sometimes difficult to realize and differ clearly the bigger Acros from the smaller Acros based on size in the pics.
http://jtenovuo.1g.fi/kuvat/20+kert...rbler/basrankerttunen+2+Kuwait+09-05.jpg/full
http://jtenovuo.1g.fi/kuvat/20+kert...rbler/basrankerttunen+3+Kuwait+09-05.jpg/full
http://jtenovuo.1g.fi/kuvat/20+kert...warbler/basrankerttunen+Kuwait+09-05.jpg/full
Though this view angle is an extra difficulty in Metroplex's photo, but the bird looks quite "able-bodied" Acro. But that impression can be also illusion because of angle.
Only smaller Acro, which came to my mind and which can remind slightly this bird, is Blyth's Reed, but e.g. the colour of upperparts looks too dark and contrast between mantle and wings+tail is quite strong. Metroplex, what smaller Acro species you meet in the area?
This bird has a darkish loral area, but not darkish eye-stripe, which lead me to think that at least it's not Clamorous
A. stentoreus. As far as I know, eye-stripe can lack or be weak in Oriental
A. orientalis.
Bigger Acros have also relative short and less rounded tail. The shape of bill have quite long, more low-pitched in proportion to the lenght and looks quite dull in bigger Acros. Unfortunately the shape of bill does not show very clearly in Metroplex's pic!
Concerning to primary projection, it's very short in
A. orientalis(~5-6 pf tips visible) and
A. stentoreus (~5-7 pf tips visible), usually less than half of the lenght of tertials. That's very similar also in Blyth's Reed.
The length of pp in Great Reed Warbler
A. arundinaceus is almost same or even longer than the lenght of tertials (in addition to 7-8 pf tips visible)
:scribe