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sation experiments. As the gold colour of pure Golden 

 Pheasant cocks varies much in intensity, the species 

 could be readily used for sexual selection experiments. 

 Golden Pheasants cost about 30s. a pair, Amherst 

 Pheasants about twice as much. The cheapest way 

 to get them would be to buy eggs and rear the 

 young. 



The Mandarin Duck would be only suitable for 

 a very large aviary, but does well with the run of a 

 garden, only needing a small pond. The extreme 

 beauty of the drake, whose wing-fans and varied 

 coloration are quite unique, makes the bird very 

 popular, and if the birds can be got to breed well 

 they are very profitable. The Mandarin would be 

 a good subject for sexual selection experiments, 

 as the females show great discrimination, and the 

 drake's plumage could easily be trimmed to produce 

 differences. Mandarin Ducks cost from 30s. a pair 

 upwards. They are very hardy birds and always 

 saleable. For awaking public interest in birds, this 

 species is second to none, as it is not only very hand- 

 some but more interesting in habits than most ducks, 

 while, like the duck tribe in general, if allowed a good 

 run and a pond, it needs no attention beyond a supply 

 of corn, and can be allowed liberty in a flower garden 

 with little risk of damage. 



The Pheasant (^Phasianus colchictis x P. torqua- 

 his). The common pheasant of coverts is now-a- 

 days a mongrel form resulting from the alliance of 

 two geographical races or subspecies. As it is bred 

 in such large numbers for sport, experiments might 

 be made with it on a large scale ; at any rate the eggs 

 and young are always saleable. White, pied, and 

 pallid (" Bohemian ") forms occur, and their colour 

 inheritance could be studied. The white, when 

 crossed with the type, appears to be usually recessive, 

 inheritance being alternative. Pheasants are best kept 



