Salida de campo al Sotillo (en Valladolid capital) el 28 de febrero de 1953, de la que se anotaron observaciones sobre ranas (sin concretar las especies), lagartijas (sin concretar las especies), los siguientes mamíferos: Crocidura russula (Musaraña gris) y "Pytimis" (llamado así por el autor, siendo posiblemente el actual género Microtus), y las siguientes aves: Larus ridibundus (Gaviota reidora), Milvus milvus (Milano real), Turdus ericetorum (considerado actualmente Turdus philomelos, el Zorzal común), Turdus merula (Mirlo común), Turdus musicus (considerado actualmente Turdus philomelos, el Zorzal común), Tyto alba (Lechuza común) y Vanellus vanellus (Avefría europea). Se incluye el análisis del contenido estomacal de un Milano real.
Field trip to the Sotillo (in the city of Valladolid) the 28th of February of 1953, of which there were noted observations about frogs (without identifying the species), little lizards (without identifying the species), the following mammals: Crocidura russula (Greater White-toothed Shrew) and "Pytimis" (as refered by the author, being possibly the current genus Microtus), and the following birds: Larus ridibundus (Common Black-headed Gull), Milvus milvus (Red Kite), Turdus ericetorum (currently considered Turdus philomelos, the Song Thrush), Turdus merula (Eurasian Blackbird), Turdus musicus (currently considered, Turdus philomelos, the Song Thrush), Tyto alba (Barn Owl) and Vanellus vanellus (Northern Lapwing). The stomach content analysis of a Red Kite is included.
