1. Fry , C. H. Ash , J. S. Ferouson-Lees , I. J. The pre-migratory weights of Palaearctic passerines in Nigeria
2. Spring migration through southeast Morocco;Smith;The pre-migratory weights of Palaearctic passerines in Nigeria,1968
3. Autumn and spring weights of some Palaearctic migrants in Central Nigeria;Smith;The pre-migratory weights of Palaearctic passerines in Nigeria,1966
4. Lipid levels in birds preparing to cross the Sahara;Ward;The pre-migratory weights of Palaearctic passerines in Nigeria,1963