The lifespan of asphalt shingles depends highly upon the environment. Shingles in cooler climates such as the northern United States seem to last longer than those installed in the warmer climates. Studies have shown that the average lifespan for a 20 year shingle in Phoenix, Arizona is around 14 years. In Minneapolis, Minnesota the lifespan was 19.5 years.
Parrots can eat various berries, mangos, papayas, plums, pomegranates and apples, among other fruits. However, the seeds and pits of fruits should always be removed, because they can be toxic to parrots. In general, choose bright, colorful fruits high in vitamin A. Continue Reading.
Because of the high fat content, you should feed them to your parrot in moderation. For example, you could feed your parrot nuts as a training reward or occasional treat. Examples of nuts that you can feed your parrot include macadamia nuts, walnuts, pistachios, and cashews. The nuts that you feed your parrot should be unsalted.