Barn Owl Productivity and Survival in Relation to the Use of Second-generation Rodenticides in 1988-1990

An examination was made of temporal and regional variation in Barn Owl first-year productivity and survival rates in relation to second-generation rodenticide usage across England and Wales.

The analyses compared BTO nest records and ringing data to Ministry of Agriculture, Fisheries and Food rodenticide data for the years 1988, 1989 and 1990.