When dead Game is not used, these deadfowl dummies are a great alternative but check state regulations if wishing to use in a RATG or Retriever Trial as their may be size and weight restrictions.
Made in the USA.

The Dokken Dead Fowl retriever trainer is the most revolutionary advancement in the dog training industry. This retriever trainer was developed and tested by a leading professional dog trainers and designed by a renowned waterfowl artist. Designed to pick up where traditional canvas dummies left off, the retriever trainer dummy simulates the proper weight, shape, size, and look of a downed pheasant, Duck or Game Bird. 

The bodies are made of a soft natural-feel foam with free swinging hard plastic head and feet and a natural dead bird weight. Encourages a proper pick up and hold while discouraging the shaking of birds. Dokken Dead Fowl Trainers float even when punctured and training scents may be injected directly into the body for added realism. For water training, the Dead Fowl Trainer has no equal when it comes to life like appearance.

(Please note that due to Australian Customs and Quarentine rules, the Dokken Scent is not available in Australia)