Can we draw the following hypothesis from the context?

Context:

Western Australian government authorities say they believe a toxin may be responsible for the recent mysterious death of an estimated 5,000 birds found in the area of Esperance - on the state's south eastern coastline. Autopsies by toxicologists from the WA Department of Agriculture will test for organochlorins, organophosphates and heavy metals.

Hypothesis: In Australia a toxin made birds healthy.
no