122 Colour Inheritance in Pigeons 



Calculated appearance : 



(48) 44 Mealy : 4 Blue. 

 (33) 30-2 : 2-8. 



Observed appearance of 33 birds produced in this group : 



(33) 28 Mealy : 5 Blue. 

 Group 6. Blue Chequer x Blue Chequer. 

 Composition of parents, rCrC and rcrC. 

 Types of mating possible, 3. 

 Number of ofifspring, 48. 

 Calculated appearance : 



(48) 44 Blue cheq. : 4 Blue. 



(72) 66 : 6 



Observed appearance of 72 birds produced in this group : 



(72) 67 Blue cheq. : 5 Blue. 

 Group 7. Blue Chequer x Blue. 



Composition of parents, rCrG, rcrG, rcrc. 

 Types of mating possible, 2. 

 Number of offspring, 32. 

 Calculated appearance : 



(32) 24 Blue cheq. : 8 Blue. 

 Observed appearance of 32 birds produced in this group : 



(32) 20 Blue cheq. : 10 Blue : 1 Red cheq. : 1 Mealy. 

 Group 8. Blue x Blue. 



Composition of parents, rcrc. 



Types of mating possible, 1. 



Number of offspring, 16. 



Calculated appearance : 



(16) 16 Blue. 



Observed appearance of 32 birds produced in this group : 



(32) 32 Blue. 



Group 1. In this group the observed red chequer and mealy figures 

 are lower, the blue chequer and blue higher, than the estimated figures. 

 To my mind there is a simple explanation of this. Fanciers generally 

 object to this type of mating, prefeTring to " mix the colours" ; it thus 

 naturally follows that the majority of red chequers are heterozygous for 

 colour, and when mated red to red, they will produce less than the 



