Canister Color Code
Pigeons were used by a variety of services and the canisters affixed to their legs were colour-coded to distinguish recipients.
- Red = US Forces + British Army
- Blue = US Forces + British RAF
- Blue with coloured disk = British RAF
- Blue with white patch = RAF
- Red with coloured disk = British Special Service
- Grey = British Special Service
- Green = British Special Service
- Black = British Civil Police
- Yellow = British Commercial
Read more about this topic: National Pigeon Service
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