Combs for animals; Drinking troughs; Feeding troughs; Cages for household pets; Litter boxes for pets; Litter trays for pets; Pet feeding bowls; Pet feeding dishes; Animal activated livestock waterers; Automatic pet feeders; Drinking troughs for livestock; Rings for identifying birds; Bird feeders; Birdcages; Mangers for animals; Racks and stands for elevating pet feeding bowls and dishes