“All four animals were in good body condition, but with congested lungs and kidneys,” said Mark Drew, an Idaho Department of Fish and Game veterinarian, in a statement. “All had Japanese yew twigs and needles in their esophagus and rumen.” The Idaho State Journal notes that the toxic shrub is common in suburban areas.

This year has marked a harsh winter for Idaho leading wildlife into the suburban neighborhoods they would typically avoid. This means that wildlife are far more likely to come into contact with the poisonous shrub. This has also led to the death of eight elk in the foothills of Boise, Idaho who, earlier in the month, died after eating Japanese yew. Considering that Japanese yew is also toxic for people and household pets, it’s a good idea to learn how to identify the bush and take any necessary precautions.

Check out field and stream to learn more.