Mountain birds wintering in Provence

A birding walk round this tourist site, probably the best place in France for close views of Wallcreeper, Blue Rock Thrush and Alpine Accentor in winter.
http://www.cheminsdesparcs.fr/pedestre/chemin-des-tremaie/
Length : 1,6 km and 164 m gradient
Duration : 40 min or 2h depending on birding breaks
Type of : Loop
Best period : Ideal for discovering winter visitors.
Information : On this walk you may encounter a flock of sheep with a guard dog nearby, called a “Patou”. In order not to disturb them, please do not approach or make sudden movements, and keep dogs on a lead.
Advice : Extend your walk by visiting the picturesque village of Les-Baux-de-Provence