translation of anonymous report (click here for more photos from the rescue):

"Riding my bike in the southeast of Madrid I discovered several trucks with cages in the parking lot of a bird slaughterhouse. As the gate was open I decided to take a look and discovered that some birds had fallen to the ground and the workers had forgotten about them. There were around 10 in a ditch where the mechanics fix the trucks. I could only take one with some difficulty, and it was with difficulty that I got a cloth bag to bring her to Madrid on my bike. It gave me much pain to leave all the others there. They were laying hens who had lived all their lives in cages and since they were producing less they were murdered. We are going to give her a home where she will be happy. I no longer eat eggs and this makes me happy as I do not want to collaborate with this savagery.
Location: SOUTHEAST OF MADRID"

Spanish:
"Haciendo una ruta en bici por el sureste de Madrid descubri varios camiones con jaulas dentro del aparcamiento de un matadero de aves.Como la puerta estaba abierta decidi hechar un vistazo y descubri que algunas aves habian caido al suelo y los trabajadores se habian olvidado de ellas.Dentro de un foso donde los mecanicos areglan los camiones habia unas diez.Solo pude llevarme una a duras penas y conseguir una bolsa de tela a duras penas para trasladarla a Madrid en bici.Me dio mucha pena dejar alli a las demas.Eran todas gallinas ponedoras que habian vivido toda su vida en jaulas y como habia bajado la produccion de huevos eran asesinadas.Le vamoa a dar un lugar para que sea feliz.Ya no como huevos y esto me alegra,no quiero colaborar con esta salvajada.
Lugar: SURESTE MADRID"