Abstract

Hazards of DRC-1339 treated brown rice to non-target birds were assessed during an operational baiting program near Point Blue, Louisiana, USA. The predominant non-target birds using DRC-1339 bait sites and surrounding habitat were savannah sparrows ( Passerculus sandwichensis), mourning doves ( Zenaida macroura), killdeers ( Charadrius vociferus), and unidentified sparrows ( Fringillidae). Systematic searches of DRC-1339 bait sites and adjacent habitat for non-target dead or affected birds produced 1 northern cardinal ( Cardinalis cardinalis). There was no mortality of potential non-target species, savannah sparrows, white-crown sparrows ( Zonotrichia leucophrys), field sparrows ( Spizella pusilla), song sparrow ( Melospiza melodia) and chipping sparrows ( Spizella passerina) that were held in captivity and offered only 2% DRC-1339 treated brown rice diluted 1 : 27 with untreated brown rice for 1 and 12 h each day for 5 days. There was no hazard of DRC-1339 to most non-target species using the test areas.

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