<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1870-7459</journal-id>
<journal-title><![CDATA[Huitzil]]></journal-title>
<abbrev-journal-title><![CDATA[Huitzil]]></abbrev-journal-title>
<issn>1870-7459</issn>
<publisher>
<publisher-name><![CDATA[Sociedad para el Estudio y Conservación de las Aves en México, A.C. (CIPAMEX)]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-74592021000200006</article-id>
<article-id pub-id-type="doi">10.28947/hrmo.2021.22.2.613</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Partial leucism in the Variable Seedeater (Sporophila corvina corvina) in Costa Rica.]]></article-title>
<article-title xml:lang="es"><![CDATA[Leucismo parcial en el Espiguero Variable (Sporophila corvina corvina) en Costa Rica.]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villegas]]></surname>
<given-names><![CDATA[Sergio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Costa Rica Escuela de Biología ]]></institution>
<addr-line><![CDATA[San José ]]></addr-line>
<country>Costa Rica</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>22</volume>
<numero>2</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-74592021000200006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-74592021000200006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-74592021000200006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Leucism is the most common plumage aberration recorded in wild birds around the world, but very few records exist for Neotropical wild bird species with black plumage. In this note I describe the first observation of partial leucism in the Variable Seedeater (Sporophila corvina corvina). The observation was made in Suerre, Pococí, Costa Rica, on 26 July 2021. These observations have important conservation implications for wild birds because they may be associated with environmental, populational and nutritional issues. This record adds to other studies of plumage aberration in wild birds of the Neotropics, and contributes to knowledge on the natural history and conservation of this species.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El leucismo es la aberración del plumaje reportado más comúnmente en las aves silvestres de todo el mundo, pero existen pocos registros para especies de aves silvestres Neotropicales con plumaje negro. En esta nota describo la primera observación de leucismo parcial en el Espiguero Variable (Sporophila corvina corvina). La observación se realizó en Suerre, Pococí, Costa Rica, el 26 de julio de 2021. Este tipo de observaciones tienen importantes implicaciones para la conservación de las aves silvestres ya que pueden estar asociadas a problemas ambientales, poblacionales y nutricionales. Asimismo, este registro se suma a otros estudios de aberración del plumaje en aves silvestres del área Neotropical, y contribuye al conocimiento sobre la historia natural y conservación de esta especie.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[conservation]]></kwd>
<kwd lng="en"><![CDATA[natural history]]></kwd>
<kwd lng="en"><![CDATA[plumage aberration]]></kwd>
<kwd lng="en"><![CDATA[Suerre]]></kwd>
<kwd lng="en"><![CDATA[Thraupidae]]></kwd>
<kwd lng="es"><![CDATA[aberraciones del plumaje]]></kwd>
<kwd lng="es"><![CDATA[conservación]]></kwd>
<kwd lng="es"><![CDATA[historia natural]]></kwd>
<kwd lng="es"><![CDATA[Suerre]]></kwd>
<kwd lng="es"><![CDATA[Thraupidae]]></kwd>
</kwd-group>
</article-meta>
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