Waterfowl hunting from hunting cars; commercial shipping of waterfowl before 1918?

From: "Chuck Berry" cberry@brookings.net

Waterfowl hunting from hunting cars; commercial shipping of waterfowl before 1918?

I see reference to railroad cars that brought hunters to the prairies as the tracks progressed westward. I have heard that Pullman had special cars; and that rich men could hook their own car on the end of the train to be dropped off anywhere, also heard that a side track could be built for a hunting car to stay for a while. I would like to know more about how railroads shipped game, especially waterfowl from the prairies to eastern cities before 1918 when interstate transport of migratory waterfowl was outlawed. Is there some record of shipments of barrels of waterfowl? I understand that refrigeration cars helped this quite a bit – did these cars have ice or actual refrigeration? I wonder if waterfowl were served on the dining cars – any menus? Could you refer me to articles or books on these subjects? ...

—Chuck Berry, Brookings, SD