“…Tu, 1979), New Zealand (Aman et al, 1985;Pulman et al, 1979;Sewell & Werry, 1976;White, 1983), the United Kingdom (e.g. Fischbacher, 1987;Kimian, 1975;Lynch, 1989a;Sheppard et al, 1987;Spencer, 1974), and the USA (e.g. Buck & Sprague, 1989;Lipman, 1970;Gadow & Kalachnik, 1981;Hill et al, 1985;Intagliata & Rinck, 1985;Martin & Agran, 1985;Poindexter, 1989;Sprague, 1977;Stone, etal, 1989).…”