<img width="1024" height="717" src="https://i0.wp.com/newspack-yucatan.s3.amazonaws.com/uploads/2026/04/Cigarros-en-nido-de-pajaros-scaled.jpg?fit=1024%2C717&amp;ssl=1" alt="" decoding="async" srcset="https://i0.wp.com/newspack-yucatan.s3.amazonaws.com/uploads/2026/04/Cigarros-en-nido-de-pajaros-scaled.jpg?w=2560&amp;ssl=1 2560w, https://i0.wp.com/newspack-yucatan.s3.amazonaws.com/uploads/2026/04/Cigarros-en-nido-de-pajaros-scaled.jpg?resize=300%2C210&amp;ssl=1 300w, https://i0.wp.com/newspack-yucatan.s3.amazonaws.com/uploads/2026/04/Cigarros-en-nido-de-pajaros-scaled.jpg?resize=1024%2C717&amp;ssl=1 1024w, https://i0.wp.com/newspack-yucatan.s3.amazonaws.com/uploads/2026/04/Cigarros-en-nido-de-pajaros-scaled.jpg?resize=400%2C280&amp;ssl=1 400w, https://i0.wp.com/newspack-yucatan.s3.amazonaws.com/uploads/2026/04/Cigarros-en-nido-de-pajaros-scaled.jpg?resize=140%2C98&amp;ssl=1 140w, https://i0.wp.com/newspack-yucatan.s3.amazonaws.com/uploads/2026/04/Cigarros-en-nido-de-pajaros-scaled.jpg?resize=299%2C209&amp;ssl=1 299w, https://i0.wp.com/newspack-yucatan.s3.amazonaws.com/uploads/2026/04/Cigarros-en-nido-de-pajaros-scaled.jpg?w=1560&amp;ssl=1 1560w, https://i0.wp.com/newspack-yucatan.s3.amazonaws.com/uploads/2026/04/Cigarros-en-nido-de-pajaros-scaled.jpg?w=2340&amp;ssl=1 2340w, https://i0.wp.com/newspack-yucatan.s3.amazonaws.com/uploads/2026/04/Cigarros-en-nido-de-pajaros-scaled.jpg?fit=1024%2C717&amp;ssl=1&amp;w=370 370w" sizes="(max-width: 34.9rem) calc(100vw - 2rem), (max-width: 53rem) calc(8 * (100vw / 12)), (min-width: 53rem) calc(6 * (100vw / 12)), 100vw" data-attachment-id="2606212" data-permalink="https://www.yucatan.com.mx/imagen/2026/04/06/las-colillas-de-cigarros-protegen-los-nidos-de-los-pajaros.html/attachment/cigarros-en-nido-de-pajaros" data-orig-file="https://i0.wp.com/newspack-yucatan.s3.amazonaws.com/uploads/2026/04/Cigarros-en-nido-de-pajaros-scaled.jpg?fit=2560%2C1792&amp;ssl=1" data-orig-size="2560,1792" data-comments-opened="0" data-image-meta="{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}" data-image-title="Cigarros en nido de pájaros" data-image-description="" data-image-caption="&lt;p&gt;¿Qué hacen esas colillas de cigarro en los nidos de los pájaros?&lt;/p&gt;
" data-large-file="https://i0.wp.com/newspack-yucatan.s3.amazonaws.com/uploads/2026/04/Cigarros-en-nido-de-pajaros-scaled.jpg?fit=780%2C546&amp;ssl=1" /><p>Una investigación polaca se suma a las pruebas encontradas en países latinoamericanos que muestran que los compuestos de las colillas de cigarros usadas protegen de los parásitos a los nidos de aves. Los pinzones de Darwin de las Galápagos, los pinzones mexicanos y los zorzales comunes de Nueva Zelanda han desarrollado una curiosa costumbre: colocan colillas de cigarro en sus [&amp;hellip;]</p>