The presence of juvenile birds, with its plumages different from the adult was remarkable, Great Tit (Parus major) , European Stonechat (Saxicola torquata) , Whinchat (Saxicola rubetra) , House Martin (Delichon urbicum) ,Barn Swallow (Hirundo rustica), Finches....
One of the most spectacular juveniles birds was the Egyptian Vulture (Neophron percnopterus), a totally black juvenile, very different from the adults, also the head differs in the color, yellow in the adult and bluish in the juvenile.
In a distance, a inexperienced observer, can to mistake by Black Vulture.

A juvenile birds of Goldfinch, Coot and Egiptian Vulture