Herons persist in Chicago wetlands despite exposure to banned chemicals

Herons nesting in the wetlands of southeast Chicago are still being exposed to chemicals banned in the U.S. in the 1970s, a research team reports. The chemicals do not appear to be affecting the birds’ reproductive success, however. The findings appear in the current issue of the Journal of Great Lakes Research.

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<p><a href="http://www.physorg.com/news119709016.html">Herons persist in Chicago wetlands despite exposure to banned chemicals</a></p> <p>Herons nesting in the wetlands of southeast Chicago are still being exposed to chemicals banned in the U.S. in the 1970s, a research team reports. The chemicals do not appear to be affecting the birds’ reproductive success, however. The findings appear in the current issue of the <i>Journal of Great Lakes Research</i>.</p>