ثانيا: المراجع الأجنبية:
3 من أصل 3
1- Abs, M, (1983). Physiology and behaviour of the pigeon. London, New York, Academic Press, pp 1-360.
2- Al-Hussaini, A. H. and Demian, E. S. (1982). Practical Animal .Biology : Systematic Zoology. In English and Arabic Languages. l1 th edition, Dar Al-Maaref, Cairo, Egypt, Volume (2).
3- Beams, H.W. and R.K. Meyer (1931). The formation of pigeon “milk”. Physiol. Zool. 4: 486-500.
4- Davies, W.L. (1939). The composition of the crop-milk of pigeons: Biochem. J. 33: 898-901.
5- Desinetn, M. and J. Vandeputte-roma (1980). Lipid composition of pigeon crop milk-I (Columba Livia , domecrica). Total lipids and classes. Comp. Biochem. Physiol. 86B 129-133.
6- Goodwin, D. (1954). Notes on feral pigeons. Avic. Mag. 60: 190-213.
7- Goodwin, D. (1976). On some characters of Rock and feral pigeons. Pigeon Sci. Gen. Newsletter. 52: 9-14.
8- Goodwin, D. (1983b). Pigeons and doves of the world. Cornell University Press, Ithaaca, NY.
9- Hall, F.W.S. (1974). Pigeon Racing. 2nd edition, London WCIN 2FT.
10- Hedge, S.N. (1973). Coippcsition of pigeon milk and its effect on growth in chicks. Indian J. Exp. Biol 11: 238-239.
11- Levi, W.M. (1963). The Pigeon. Sumter, S.C., Levi Publ. Co., pp 1-667.
12- Levi, W.M. (1969). “The pigeon” Levi Publishing Inc. Sumter, S.C.
13- Miller, W.J. and F.H. Wagner (1955). Sexing mature Columbiformes by cloacal characters. Auck., 72: 279-