What do you think of grassables?

The age of the grass can be judged through its paws and feathers. The thinner the skin on the paw, the younger the birds, and the shine feathers.The feathers of the old bird are often dull, and the older the age, the clutter the feathers will be, and the thick keratin will grow on the paws.In addition, you can also look at its toenails to judge age. The older bird, the toenails on the paws are longer.