Many of the European maps are populated by herds of animals that are either incorrectly named are not native to Europe at all. Many deer species have different names across the Atlantic so the confusion is understandable.
Elk → Red Deer
Elk (Wapiti) are from North America and Asia and do not exist in Europe. The animal that Europeans would call an “Elk” is what is known as a Moose in North America. If Elk get removed from Europe, the Moose on those maps could then be called Elk.
The closest European animal to the Elk/Wapiti is the Red Deer. Red Deer are similar to Elk, but they are smaller and lack the darker colouration around the head. A name change and touch up to the colour would be all it takes to add Red Deer.

Caribou → Reindeer
Caribou is the North American name for the animal that Europeans call Reindeer. They should be called Reindeer on maps outside of North America.
Wisent
This is just nitpicking, but it would be nice if the Wisent model was slightly different from the Bison model. They are actually a different species that are smaller and leaner.
← Bison
Auroch
Aurochs survived into the 1600s in Poland, so a herd of them could be present on the Vistula Basin map.
Wild Boar
This needs its own proper model. Right now it uses the Warthog model which does not look right at all.
← Wild Boar
← Warthog
Other Treasure Guardians
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Wolverines and Lynx could be weak guardians on lots of maps including Europe.
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The “Gunman” guardian could be called a Footpad to be more specific.
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“Mutinous ___” could be used to describe some of the military unit guardians. “Marauding ___” seems a bit overused.
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The average European treasure is also pretty underwhelming, so some better options/distribution would be nice.