Also, drugs that are safe in people and dogs may result in death when used in cats. Again, if your are unsure, call your veterinarian for advice. Birds are more sensitive to air pollutants than people. In the old days miners would take canaries into the mines with them to monitor the air quality. When the canaries began having difficulty breathing or died, it was a signal to the miners that the air was bad and to get out in a hurry.
Strychnine is a commonly used rodenticide.
It is also used in gopher baits. Domestic animals must be excluded from areas where rodent baits are placed. Most cases are seen in the fall and winter. Anti-freeze has a sweet taste that many species of animals like. Avocado leaves Cases of avocado poisoning are seen periodically in Los Angeles County animals.