The pro-1080 article in The Press (Jan 12) confirms the claim of 25 million birds per annum being killed by predators is essentially a guesstimate.
John Innes, who created the figure, confirms this by saying ‘‘the biggest guess was the number of nesting attempts’’.
It is also stated that ‘‘predation is known to cause 61 per cent of failures’’.
That percentage cannot possibly be an absolute ‘‘known’’ and it is completely unscientific to claim it as such.
Of equal importance is the number of non-target species, including birds and insects, that are also killed by 1080 ingestion.
That figure will be vastly greater.
B R Armstrong, Islington