<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-09-15T08:41:34Z</responseDate><request verb="GetRecord" identifier="oai:gredos.usal.es:10366/22242" metadataPrefix="dim">https://gredos.usal.es/oai/request</request><GetRecord><record><header><identifier>oai:gredos.usal.es:10366/22242</identifier><datestamp>2025-04-30T17:37:34Z</datestamp><setSpec>com_10366_3698</setSpec><setSpec>com_10366_3692</setSpec><setSpec>com_10366_3676</setSpec><setSpec>col_10366_3699</setSpec></header><metadata><dim:dim xmlns:dim="http://www.dspace.org/xmlns/dspace/dim" xmlns:doc="http://www.lyncode.com/xoai" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.dspace.org/xmlns/dspace/dim http://www.dspace.org/schema/dim.xsd">
<dim:field mdschema="dc" element="contributor" qualifier="author" lang="es_ES" authority="1cee4993-0de8-4e7c-8c48-22e659fb9ddb" confidence="500" orcid_id="">Valverde Gómez, José Antonio, 1926-2003</dim:field>
<dim:field mdschema="dc" element="contributor" qualifier="other" lang="es_ES" authority="ae6ce02c-d1cd-45cf-a193-b4213854421c" confidence="500" orcid_id="">Valverde Gómez, Carlos</dim:field>
<dim:field mdschema="dc" element="coverage" qualifier="spatial" lang="es_ES">Cabezón de Pisuerga (Valladolid, España)</dim:field>
<dim:field mdschema="dc" element="coverage" qualifier="temporal" lang="es_ES">Enero 1954</dim:field>
<dim:field mdschema="dc" element="date" qualifier="accessioned" lang="es_ES">2008-09-30</dim:field>
<dim:field mdschema="dc" element="date" qualifier="accessioned">2009-10-08T11:24:59Z</dim:field>
<dim:field mdschema="dc" element="date" qualifier="available">2009-10-08T11:24:59Z</dim:field>
<dim:field mdschema="dc" element="date" qualifier="created" lang="es_ES">[ND]</dim:field>
<dim:field mdschema="dc" element="date" qualifier="issued">2009-10-08T11:24:59Z</dim:field>
<dim:field mdschema="dc" element="identifier" qualifier="uri">http://hdl.handle.net/10366/22242</dim:field>
<dim:field mdschema="dc" element="description" lang="es_ES">Salida de campo a Cabezón de Pisuerga (Valladolid), a orillas del río Pisuerga, el 24 de enero de 1954, de la que se anotaron observaciones sobre las siguientes aves: Anas crecca (Cerceta común), Anas penelope (Silbón europeo), Anas platyrhynchos (Ánade azulón, también llamado Pato bravío por el autor), Carduelis cannabina (Pardillo común, llamada Colorín y Acanthis cannabina por el autor) y Rallus aquaticus (Rascón europeo). Se incluye el análisis de los contenidos estomacales de siete individuos de Pardillo común, formados enteramente por diferentes semillas.</dim:field>
<dim:field mdschema="dc" element="description" lang="es_ES">Field trip to Cabezón de Pisuerga (Valladolid), on the banks of the Pisuerga River, the 24th of January of 1954, of which there were noted observations about the following birds: Anas crecca (Common Teal), Anas penelope (Eurasian Wigeon), Anas platyrhynchos (Mallard), Carduelis cannabina (Eurasian Linnet, refered as Acanthis cannabina by the author) and Rallus aquaticus (Water Rail). The analysis of the stomach contents of seven individuals of the Eurasian Linnet, all of them consisting in different seeds, is also included.</dim:field>
<dim:field mdschema="dc" element="format" qualifier="extent" lang="es_ES">1 páginas</dim:field>
<dim:field mdschema="dc" element="format" qualifier="mimetype" lang="es_ES">application/pdf</dim:field>
<dim:field mdschema="dc" element="language" lang="es_ES">Español</dim:field>
<dim:field mdschema="dc" element="language" qualifier="iso" lang="es_ES">spa</dim:field>
<dim:field mdschema="dc" element="relation" qualifier="requires" lang="es_ES">Adobe Acrobat</dim:field>
<dim:field mdschema="dc" element="rights">Attribution-NonCommercial-NoDerivs 3.0 Unported</dim:field>
<dim:field mdschema="dc" element="rights" qualifier="uri">https://creativecommons.org/licenses/by-nc-nd/3.0/</dim:field>
<dim:field mdschema="dc" element="rights" qualifier="accessRights" lang="es_ES">info:eu-repo/semantics/openAccess</dim:field>
<dim:field mdschema="dc" element="subject" lang="es_ES">Zoología</dim:field>
<dim:field mdschema="dc" element="subject" lang="es_ES">Ecología</dim:field>
<dim:field mdschema="dc" element="subject" lang="es_ES">Vertebrados</dim:field>
<dim:field mdschema="dc" element="subject" lang="es_ES">Aves</dim:field>
<dim:field mdschema="dc" element="subject" lang="es_ES">Cabezón de Pisuerga (Valladolid, España)</dim:field>
<dim:field mdschema="dc" element="subject" lang="es_ES">Valladolid (España : Provincia)</dim:field>
<dim:field mdschema="dc" element="subject" lang="es_ES">Castilla y León (España)</dim:field>
<dim:field mdschema="dc" element="subject" lang="es_ES">Pisuerga (España : Río)</dim:field>
<dim:field mdschema="dc" element="subject" lang="es_ES">Zoology</dim:field>
<dim:field mdschema="dc" element="subject" lang="es_ES">Ecology</dim:field>
<dim:field mdschema="dc" element="subject" lang="es_ES">Vertebrates</dim:field>
<dim:field mdschema="dc" element="subject" lang="es_ES">Birds</dim:field>
<dim:field mdschema="dc" element="subject" lang="es_ES">Cabezón de Pisuerga (Valladolid, Spain)</dim:field>
<dim:field mdschema="dc" element="subject" lang="es_ES">Valladolid (Spain : Province)</dim:field>
<dim:field mdschema="dc" element="subject" lang="es_ES">Castilla y León (Spain)</dim:field>
<dim:field mdschema="dc" element="subject" lang="es_ES">Pisuerga River (Spain)</dim:field>
<dim:field mdschema="dc" element="title" lang="es_ES">Salida de campo a Cabezón de Pisuerga (Valladolid) el 24 de enero de 1954</dim:field>
<dim:field mdschema="dc" element="type" lang="es_ES">info:eu-repo/semantics/workingPaper</dim:field>
<dim:field mdschema="dc" element="type" lang="es_ES">info:eu-repo/semantics/workingPaper</dim:field>
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