This episode's symbols are: Z - Swimming Goggles, A - Hog on a spit, R - Can of fuel, K - Barbed Wire Fence.
Marty (Jason Bateman) mentions someone named Nyggard on the phone. Lester Nyggard, played by Martin Freeman, was the main character in the first season of Fargo (2014), which also takes place in the Midwest.
Rather pointedly, Jonah Bryde spends a lot of this episode learning about how starlings, which were imported to the United States, are highly destructive. This provides a rather apt analogy to his own family which has caused untold disruption to the Ozark community.