- Dramatic drop in monarch butterfly count nears record 30-year low The Associated Press
- Monarch butterfly population in Western U.S. nears record 30-year low. Here’s what to know. CBS News
- Western Monarch Butterfly Overwintering Population Falls 96 Percent, Second-Lowest Number On Record IFLScience
- Western Monarch Butterflies Near Record Low The Weather Channel
- There used to be millions of monarch butterflies in California. Now, they’re in the thousands Sacramento Bee