<?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>S1870-74592019000200206</article-id>
<article-id pub-id-type="doi">10.28947/hrmo.2019.20.2.424</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Comportamiento agonístico del mosquero de Hammond ( Empidonax hammondii) en el sapo pinero (Incilius occidentalis)]]></article-title>
<article-title xml:lang="en"><![CDATA[Agonistic behavior of Hammond&#8217;s Flycatcher (Empidonax hammondii) on Pine Toad (Incilius occidentalis)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alvarez-Alvarez]]></surname>
<given-names><![CDATA[Edson A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Santos-Ramírez]]></surname>
<given-names><![CDATA[Ulises]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Almazán-Núñez]]></surname>
<given-names><![CDATA[R. Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Guerrero Maestría en Recursos Naturales y Ecología Facultad de Ecología Marina]]></institution>
<addr-line><![CDATA[Acapulco Guerrero]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Guerrero Laboratorio Integral de Fauna Silvestre (área de Ornitología) Facultad de Ciencias Químico-Biológicas]]></institution>
<addr-line><![CDATA[Chilpancingo de los Bravo Guerrero]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<volume>20</volume>
<numero>2</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-74592019000200206&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-74592019000200206&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-74592019000200206&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La agresividad es un comportamiento agonístico importante en los animales, con influencia en la supervivencia y éxito reproductivo de las especies. Los papamoscas (Tyrannidae) exhiben conductas sociales altamente visibles, pero poco se ha documentado sobre su comportamiento agonístico. Registramos una conducta agresiva del mosquero de Hammond (Empidonax hammondii) sobre el sapo pinero (Incilius occidentalis) en un bosque de pino-encino de Omiltemi, Guerrero, México. De acuerdo con nuestra observación y a lo reportado en la literatura para otros mosqueros, E. hammondii puede presentar conductas atípicas relacionadas con el ataque o la depredación de anfibios de talla pequeña.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Aggression is an important agonistic behavior in animals, with influence on the survival and reproductive success of the species. Flycatchers (Tyrannidae) exhibit highly visible social behaviors, but little has been documented on their agonistic behavior. We recorded an aggressive behavior of Hammond's Flycatcher (Empidonax hammondii) on Pine Toad (Incilius occidentalis) in a pine-oak forest of Omiltemi, Guerrero, Mexico. According to our observation and to what has been reported in the literature for other flycatchers, E. hammondii can present atypical behaviors related to the attack and/or predation of small-sized amphibians.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[anfibio]]></kwd>
<kwd lng="es"><![CDATA[ave]]></kwd>
<kwd lng="es"><![CDATA[conducta agresiva]]></kwd>
<kwd lng="es"><![CDATA[mosquero]]></kwd>
<kwd lng="es"><![CDATA[historia de vida]]></kwd>
<kwd lng="es"><![CDATA[México]]></kwd>
<kwd lng="en"><![CDATA[amphibian]]></kwd>
<kwd lng="en"><![CDATA[aggressive behavior]]></kwd>
<kwd lng="en"><![CDATA[bird]]></kwd>
<kwd lng="en"><![CDATA[flycatcher]]></kwd>
<kwd lng="en"><![CDATA[life history]]></kwd>
<kwd lng="en"><![CDATA[Mexico]]></kwd>
</kwd-group>
</article-meta>
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