From this statement from the Delta website it appears they are being quite selective in their ban. It will not effect the majority of African hunters.
Shipments of lion, leopard, elephant, rhino, buffalo trophies banned
By Staff Writer • posted Aug. 3, 2015
Delta issued the following statement today:
Effective immediately, Delta will officially ban shipment of all lion, leopard, elephant, rhinoceros and buffalo trophies worldwide as freight. Prior to this ban, Delta's strict acceptance policy called for absolute compliance with all government regulations regarding protected species. Delta will also review acceptance policies of other hunting trophies with appropriate government agencies and other organizations supporting legal shipments.