Wallcreeper in the Sierra de Guara in Northern Spain

My first attempts were not successful. The very reliable Wallcreeper wall in the town of Alquezar in Aragon revealed a Sparrowhawk instead. In search of this elusive high mountain dweller I payed attention to an article by Dave Gosney from 19th of find March 2008  on ” Birding abroad“. The article is titled: “Finding Wallcreepers… Continue reading Wallcreeper in the Sierra de Guara in Northern Spain