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.
6400 migratory birds and other animals were killed
The text says more than 6400
( z1 kill :ARG1 ( z2 and :quant 6400 :op ( z3 bird :ARG0-of ( z4 migrate ) ) :op ( z5 animal :mod ( z6 other ) ) ) )