Hello John,
I presume your going to the Corbieres region near Narbonne / Perpignan. If you are you are in for a treat!
Although I didn't quite go into the Corbieres, I spent time just south of here and travelled into the Pyrenees Orientalis a few times.
I have just returned from a week's work out there, but spent every spare minute in the field. I stayed a little south of the region in Rivasaltes near Perpignan. I visited two exeptional sites during my stay - Etang de Lucateau de Salses and Etang de Canet - either side of Perpignan.
Both had huge numbers of Greater Flamingo along with good numbers of Purple Heron, Cattle Egret and even one Great White Egret at Canet. Waders were excellent with Temmink's Stint, hundreds of shanks, Dunlin and sandpipers, Collared Pratincole, Avocet and B.W.Stilt. There was also Marsh Sand there at the time but I missed this. There were over 150 Black necked Grebes on Canet. Birds of Prey included several Honey Buzzard, Short toed Eagle, Hobby and Golden Eagle in the Mountains.
Highlight of the trip for me was several totally unexpected Purple Gallinules at the Golf Course just south of Etand de Canet.
The whole area was full of a mixture of Med and Pyrenees species such as Roller, Shrikes, Alpine Swift, Crag martin, Subalpine and Sardinian Warbler, Moustashed and Fan tailed warbler, Serin, Bonelli's warbler, Crested Tit, Firecrest and four species of Woodpecker including Black. I also found a flock of Spotless Starling in the centre of Rivesaltes near Perpignan.
It was also good to see good numbers of species such as Tree Sparrow, Corn and Cirl Buntings out there. Migration was in full swing with flocks of 20-30 Blackcaps and Garden Warblers moving through!
While out there I met the warden of the area, he worked for the Langudeoc-Rousillon Ornithological Society, I have his e-mail at home at the bottom of my unpacked suitcase. I'll forward it to you in the near future. If you need more info let me know.
One thing is for sure is you'll have a great time.
Cheers
Marc