Carly Fox, DVM, offers good advice on the importance of collars and collar identification. Pet parents might believe that with the prevalence of microchips, their animals don’t need a collar but animals that wear them are typically perceived as being owned. Information on the collar makes contacting the owner easier than finding someone to read a chip.
Source: Inverse, via AVMA Animal Health SmartBrief, December 2, 2023. Link.