ولي أضافة مثيرة وهي انه تمت الاشارة من قبل مربيين اوروبيين الي احتاملية وجود بغال خصبة و لكن النسبة قد تصل الي 1%
وهاهو اقتباس من احصائيات تشير الي تزاوج الروزيكوليس بالانواع الاخري واعطاء طيور خصبة :
Agapornis Selby
Agapornis cana (Gmelin) [Madagascar Lovebird. Grey-headed Lovebird]
x Agapornis roseicollis (Vieillot) [Peach-faced Lovebird]
The hybrids are said to be fertile.
Legendre, M. 1936.
x Melopsittacus undulatus (Shaw) [Budgerigar]
"Male" Madagascar Lovebird x "female" Budgerigar. There are a few records
of alleged hybridization, but the reliability of such reports is questioned both by
Cayley and by Prestwich. Page has reported a hybrid that lived to leave the nest.
Braune, -. Cayley, N. W. 1938; Gefiederte Weldt, Die 1890; Hokinson, E. 1926,
1941; Neunzig, K. 1921; Page, W. T. 1918a; Prestwich, A. A. 1943a
Agapornis fischeri Reichenow [Fischer's Lovebird]
x Agapornis roseicollis (Vieillot) [Peach-faced Lovebird]
The two species cross readily. Reciprocal hybrids have been reported. According
to Legendre, the hybrids are fertile. Prestwich (1950) has given a brief description
of 3 young hybrids reared in France
Delacour, J. 1930, 1931; Hampe, H. 1939; Hopkinson, E. 1930, 1931a, 1933a, 1941;
Legendre, M. 1936; Olivaux, M. C. 1929; Prestwich A. A. 1929, 1950
Agapornis lilianae Shelley [Nyasa Lovebird]
x Agapornis roseicollis (Vieillot) [Peach-faced Lovebird]
The cross has occurred in both directions. The hybrids are fertile. Hopkinson has
recorded several backcrosses produced by a hybrid "female" mated to a Nyasa "male"
. A markedly quarrlesome "male" hybrid described by Warren was a little smaller than
the mother (roseicollis) but larger than the sire. The incubation period was about 18 days.
Agapornis nigrigenis W. L. Sclater [Black-cheeked Lovebird]
x Agapornis roseicollis (Vieillot) [Peach-faced Lovebird]
The two species are said to interbreed readily. According to Marriner, the hybrids are
fertile inter se.
Delacour, J. 1930; Hampe, H. 1939; Hopkinson, E. 1926, 1933a, 1941; Legendre, M. 1936;
Marriner, J. S. 1927; Prestwich, A. A. 1928
x Melopsittacus undulatus (Shaw) [Budgerigar]
"Male" black-cheeked lovebird x "female" Budgerigar. There is a report in Bird Notes,
1911, of 4 hybrids which hatched and were said to be doing well. The authenticity of the
report has been questioned by Cayley, Hopkinson (1941) and Prestwich
Bird Notes 1911d; Cayley, N. W. 1938; Hopkinson, E, 1926, 1941; Prestwich, A. A. 1943a
Agapornis personata Reichenow [Masked Lovebird]
x Agapornis roseicollis (Vieillot) [Peach-faced Lovebird]
The cross has occurred in both directions. The hybrids are said to be fertile.
"male" masked x "female" Peach-faced Lovebird. A "male" hybrid described by Hill
tended to resemble roseicollis in size and coloration.
Ara, L. A. 1952b; Delacour, J. 1930; Hampe, H. 1939; Hill, W. C. O. 1942; Hopkinson, E. 1931a
1933a, 1941; Kelly, A. L. 1949; Legendre, M. 1936; Prestwich, A. A., 1949c
x Melopsittacus undulatus (Shaw) [Budgerigar]
Presumed hybrids have been reported. They appeared to be sterile
Gjessing, G. A. 1953.
Agapornis pullaria (Linnaeus) [Red-headed Lovebird. Red-faced Lovebird]
x Agapornis roseicollis (Vieillot) [Peach-faced Lovebird]
The hybrids are said to be fertile.
Legendre, M. 1936.
x Melopsittacus undulatus (Shaw) [Budgerigar]
Boosey and Prestwich both doubt the authenticity of this reputed cross.
Boosey, E. 1952, Prestwich, A. A. 1943a.
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