Possible Clues:

• Fantastic repartee where game bird takes seasonal occupation
• ''And a partridge in a ... ...'' (Christmas song)
• Orchard grower
• 'And a partridge in a . . . . . . . .' (Christmas song)
• Where to find a bird for Christmas
• One of the birds is always there for Christmas conference with Holly
• Partridge's home?
• An Xmas tree
• Is 13 across up there among the fruit at Xmas?
• What comes with start of Christmas - strange repartee