Help with 18th c. silver spoon w/ unusual bird weathervane engraving

1

Hi all, looking for help identifying the country and maker of my hallmarked silver serving spoon with unusual bird weathervane engraving on the back side of the bowl, in addition to a lengthy engraved owner’s name and year “1785”. Thanks for your insights!

18th c. silver serving spoon bird 1
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18th c. silver serving spoon bird 3
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18th c. silver serving spoon bird 4
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18th c. silver serving spoon bird 6
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18th c. silver serving spoon bird 7
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