I've never heard of dairy cows visiting other states.
I would think a lot of cows transit between Minnesota,Iowa ,Illinois and Wisconsin to replenish herd sizes and to establish new dairy operations. Transit cross country to say Florida not so much but California has a huge dairy herd so does Texas those cows got to get there somehow. Trucks or ships is the way I wouldn’t imagine chartering a 747 freighter would be the cattle barons preferred transport method.
It wasn’t that long ago people would herd aka drive cattle over land trails to railroad heads from Texas to Kansas and beyond. Preston trail road in DFW is built along part of the real Preston trail. Same for Chisholm Trail rd in Round Rock Texas the road is built directly over the trail where it crosses bushy creek with the trail marker the “Round Rock” in the middle of the creek at the solid limestone fording site.
Thus the City of Round Rock is named after the Chisholm Trail round rock trail marker and that’s the classes bit of Texas history for the day :)
Avian flu is carried by wild birds that eat the same grain that cattle eat so when they land eat that grain feed then crap all over the feed the cow eats it and bang infected cattle no Qtard tinfoil needed this is also why it’s spreads so far and fast look at the migratory bird flyways over North America they almost all cross Texas and the Midwest into Mexico and Latin America.