It looks more like the work of B&T than AS. I have a picture of another of this design that I also noted was signed by B&T. (Not my picture, so I can't post) This bird would be unusual for AS. Many people and businesses attribute any bird with gold to them. AS did some pouter pigeons with tucked bill, but I haven't seen any that look like this. I have a feeling the auction house just said "tucked bill, pouter pigeon, got gold. Must be Archimede."