Visita a la iglesia de San Pablo, en Valladolid capital, durante la mañana del 18 de marzo de 1949, de la que se recogen observaciones diversas sobre varios cernícalos primilla (Falco naumanni), Grajillas (Corvus monedula, en particular la subespecie Corvus monedula spermologus, denominada por el autor Coloeus monedula spermologus) y Palomas domésticas (Columba domestica) que habitaban dicho edificio. Se incluyen tres dibujos de tres nidos de Cernícalo primilla (Falco naumanni) observados.
Visit to the San Pablo´s Church in the city of Valladolid, during the morning of the 18th of March of 1949, in which different observations about many Lesser Kestrels (Falco naumanni), Eurasian Jackdaws (Corvus monedula, specifically the subspecies Corvus monedula spermologus, refered as Coloeus monedula spermologus by the author) and Domestic Pigeons (Columba domestica) inhabiting the building were recorded. Three illustrations of three nest of the Lesser Kestrel (Falco naumanni) are included.
