More than 6,400 migratory birds and other animals were killed in Nevada by drinking water in the cyanide-laced ponds produced by gold mining operations.
Cyanide killed many birds in nevada
( z1 kill :ARG0 ( z2 cyanide ) :ARG1 ( z3 bird :quant ( z4 many ) ) :location ( z5 state :name ( z6 name :op "Nevada" ) ) )