Blog Archive: Avian Extreme

Birdorable Emperor Penguin

Avian Extreme: Penguin Fasts

Birdorable Emperor Penguin with chick

Did you know that all penguins practice fasting during the year? Prior to fasting, penguins build up a thick fat layer which will provide energy during the fast period. Penguins fast for two reasons. First, some species don't leave their nesting grounds during the entire courtship, breeding and incubation period. Their food is found in the water so they are unable to feed if they don't leave the nesting grounds. Penguins also fast during seasonal molt.

When their new waterproof feathers are just growing in, they are unable to enter the water to feed. Different penguin species have different fast lengths. The male Emperor Penguin has the longest fasting period during breeding season. While preparing and caring for chicks, a male Emperor Penguin will fast for an incredible 90 to 120 days!

If you can't get enough of this extreme avian species, be sure to check out all of Birdorable's cute penguin t-shirts & gifts.

Birdorable Ostrich

Avian Extreme: Ostrich Eyes

May 25th, 2011 in Ostriches, Avian Extreme 1 comment
Birdorable Ostrich

The Ostrich is the largest living species of bird, so it's no surprise that they have the largest eyes of any avian species. In fact, the eyes of an ostrich, measuring two inches in diameter, are the largest of any terrestrial species. Its large eyes help the flightless Ostrich perceive predators that share their wide open savanna habitat. When a predator is perceived, another avian extreme comes in handy: the Ostrich is the fastest land bird, able to achieve a running speed of up to 45mph! If you can't get enough of this extreme avian species, be sure to check out Birdorable's collection of cute Ostrich t-shirts & gifts.