October 1973 – vol. 66, issue 10, pp 437–439 On 3rd February 1973 an adult male Peregrine Falco peregrinus was found dazed, with, little control of equilibrium, in upper Strathendrick, Stirlingshire. The bird ate little and died the next day. About 1st April 1973 an adult female Peregrine was found dead about 4 km from where the tiercel had been found. On analysis for organochlorine residues, both birds were found to be very heavil... This article is only available to registered users.To read more, please log in or purchase a subscription.