He completed his PhD thesis on the ecology and behaviour of Black Grouse , at the University of Aberdeen in 1969 .
Dr Gavin Wildridge Johnstone ( 1941 - 1987 ) was an Australian ornithologist who grew up and was educated in Scotland .
Gavin Wildridge Johnstone completed Gavin Wildridge Johnstone 's PhD thesis on the ecology and behaviour of Black Grouse , at the University of Aberdeen in 1969 .
Dr Gavin Wildridge Johnstone ( 1941 - 1987 ) was an Australian ornithologist who grew up and was educated in Scotland .