When a nation is under judgment, Deuteronomy 28 spells out how one can tell. We read of multiple examples in the early chapters of Exodus as the Pharaoh that opposed Jehovah came under judgment for his defiance against God's Will. Because of Pharaoh, food sources were destroyed, Egypt was littered with dead and dying livestock and animals, homes and public buildings were destroyed or heavily damaged because that's what judgments do -- they destroy and dismantle a nation's infrastructure and the economy. David Wilkerson wrote in several of his books the different signs of judgment upon a nation.
WHEN A NATION IS UNDER JUDGMENT, ITS ANIMALS ARE AFFLICTED WITH ILLNESSES OR DIE OFF. Livestock and herds will be threatened and/or afflicted affected by illnesses and diseases; animals in the wild become diseased. The numbers of some animals and insects increase while others die off.
Deut. 28: 18: Cursed shall be . . . the increase of thy kine, and the flocks of thy sheep.
Hosea 4: 3: Therefore shall the land mourn, and every one that dwelleth therein shall languish, with the beasts of the field, and with the fowls of heaven; yea, the fishes of the sea also shall be taken away.
JAN 2: Flooding in Illinois drowns 2000 pigs
JAN 3: Thousands of cows freeze to death in Mexico
JAN 6: Tens of thousands of common murres found dead on Alaskan beach
JAN 12: Horrific die-off of birds along Alaskan beaches leaves scientists very worried, "Something's going on out there."
JAN 13: Carnage along the west coast exploding since 2011
JAN 15: High-path H7N8 outbreak kills turkeys at Indiana farm
JAN 17: More than 10,000 dead squid wash ashore in Chile
JAN 22: More whales found dead on Baja beach
JAN 24: Thousands of dead starfish washed ashore in Florida
JAN 28: Dead fish as far as the eye can see on Martha's Vineyard
JAN 30: Largest die-off of common murres ever recorded on Alaskan beach
FEB 9: More than 200 sea turtles found dead on Mexico beach
FEB 16: Hundreds of dead turtles and birds found dead on Mexico beaches
FEB 23: More dead birds found on Peruvian beach
FEB 23: Another 100 sea turtles found dead on Mexico beach bringing total to nearly 1,000
FEB 25: Numerous green sea turtles wash up dead on Florida beaches
FEB 28: Hundreds of sea lions wash up dead in Chile
MARCH 1: West Coast Sardines Are Dropping Like Flies