Durable materials, that IF they are not ripped up by a busy beak, they will likely last for years of normal wear and tearBackpack straps are comfortable and have a spot I can clip my water bottle onLightweight (not even as heavy as my purse)Natural branch instead of straight wood dowelBottom liner is easy to wrap newspaper aroundPlaces for toysNice little roll down flaps, which are especially useful for me, since we live in a rainy climate and may get caught in a surprise shower at some point!Place for a seatbelt to go throughCons-Color choices
