@article{journal,
author = {Cordero, P. J. and S{\'a}nchez-Aguado, F. J.},
title = {J{\'o}venes de Gorri{\'o}n molinero (Passer montanus) parasitando nidos de su propia especie},
year = {1988},
volume = {12},
pages = {385--386},
journal = {Miscel·l{\`a}nia Zool{\`o}gica},
keywords = {Intraspecific parasitism, Fledgings, Nests, Passer montanus, Tree Sparrow}
}