- Bird flu kills 20 big cats in WA sanctuary The Seattle Times
- 20 Big Cats Die From Bird Flu at a Washington Sanctuary The New York Times
- Shelton animal sanctuary says 20 large cats are dead from avian flu outbreak KING5.com
- Bird flu kills 20 big cats at sanctuary south of Seattle Fox 12 Oregon
- Timeline: Bird flu outbreak kills big cats at shelter south of Seattle FOX 13 Seattle
