Like many parrots, they are determined chewers and require toys and treats to chew on. Of these oral carcinoma patients, 36% were regular betel quid chewers. The dentition of the skeletons are stained, typical of betel chewers. The dentition of the skeletons is stained, typical of betel chewers. Lovebirds are avid chewers, with strong beaks.