baeticatus-like Warblers at Llobregat Delta

“Dreams are the genus; nightmares the species.” – Jorge Luis Borges It’s been already 5 years with the same idea hanging around in my head. It was in summer 2008, already in July but after a memorable spring migration plenty of eastern migrants. Joan Castelló caught an Acrocephalus warbler at Reguerons, Llobregat Delta, that immediately struck [...]