I found two paper wasps’ nests within 50m of each other in an area of undeveloped land near our house (we call this area “wild hill”). Actually, I was there looking for snakes (which I didn’t find this time). I nearly stepped on the first nest, but was looking carefully when I found the second. The wasps were so busy making their nests that they completely ignored my presence (thankfully!!)

Insecta: Hymenoptera: Vespidae
Paper Wasp (futamon ashinagabachi) = Polistes chinensis (14-18mm)
Information:
Wikipedia (in English)
Nagoya City (in Japanese)

Grassland where I found the nestsWasps making a nestWasps making a nestWasps making a nestWasps making a nestWasps making a nest