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Chronic toxicity is the most important variable in predicting negative bird population trends associated with pesticides

... Sandpiper (Bartramia longicauda) and Grasshopper Sparrow (Ammodramus savannarum) abundance and agricultural intensity (p<0.05). Linear ...

Story - Henk Tennekes - 22/11/2011 - 05:48 - 0 comments - 1 attachment

Top 20 Common US Birds in Decline

... food items during the summer. 2 Henslow's Sparrow Ammodramus henslowii: -96.4%; 2003 population estimate: 79,000. These birds ... and lizards. 11 Grasshopper Sparrow Ammodramus savannarum: -77.1%; 2003 population estimate: 15,000,000. They forage on the ...

Story - Henk Tennekes - 27/10/2011 - 09:47 - 0 comments - 2 attachments