1/2-Brother to 1/2-Sister
                                                C-of-I= 12.50

               |->  4s SIRE               RC=47.14%         The inbreed comes from the SIRE who contributes
          |->  2s 1/2-Brother        RC=58.93%              12.5 to the inbreeding coefficient.    
          |    |->  5d outside-hen-1      RC=23.57%                                                                   
          |                                                 You may have gueesed that both the 1/2-Brother and the
     -->  1  TARGET-BIRD        CI=12.50%                   1/2 sister; who have a 50% percent blood relationship
          |                                                 to the TARGET-BIRD are move closely related to the      
          |    |->  6s SIRE               see position 4    TARGET-BIRD.  In this case the relationship is 59%.     
          |->  3d 1/2-Sister         RC=58.93%                                                                        
               |->  7d outside-hen-2      RC=23.57%                                                                   

                   S       FR LA             --SIRE-- ---DAM-- INDPD   EST  PAIR                       
                   E   COI ST ST NO NO  PCNT NO  PCNT NO  PNCT INDVD   REL  BACK                       
ID                 X  PCNT GN GN OS OC BLOOD OC BLOOD OC BLOOD CONTB CONTB   COI SIRE               DAM
------------------ - ----- -- -- -- -- ------ -- ----- -- ----- ----- ----- ----- ------------------ ------------------
SIRE               m  0.00  3  3  2  2 50.00  1 25.00  1 25.00 12.50 47.14 25.00                                      
outside-hen-1      f  0.00  3  3  1  1 25.00  1 25.00  0  0.00  0.00 23.57 12.50                                      
outside-hen-2      f  0.00  3  3  1  1 25.00  0  0.00  1 25.00  0.00 23.57 12.50                                      
1/2-Brother        m  0.00  2  2  1  1 50.00  1 50.00  0  0.00  0.00 58.93 31.25 SIRE               outside-hen-1     
1/2-Sister         f  0.00  2  2  1  1 50.00  0  0.00  1 50.00  0.00 58.93 31.25 SIRE               outside-hen-2     
TARGET-BIRD        ? 12.50  1  1  0  0  0.00  0  0.00  0  0.00  0.00  0.00  0.00 1/2-Brother        1/2-Sister