In 1890, 60 common starlings were released in Central Park in an attempt to introduce every bird mentioned in the works of Shakespeare to America. They became a pest, and there are currently 150 million of them.
Hummingbirds are constantly hours away from starving to death, only being able to store enough energy to survive overnight. Having the highest metabolic rate of animal kingdom, their heart can reach 1260 BPM and they’ll breath 250 times a minute at rest.
Research from Moscow State University & the University of Iowa discovered that crows exhibit strong behavioral signs of analogical reasoning—the ability to solve puzzles like “bird is to air as fish is to what?” Analogical reasoning only develops in humans between the ages of three & four.
Some ducks have been observed floating through tidal rapids or fast-moving sections of rivers, and when they’ve reached the end, they hurry back to the beginning to ride over and over.
Scientists studied a parrot for 30 years and found he had the intelligence of a five-year-old human. He had a vocabulary of 150 words and could ask for a banana. If he was offered a nut instead, he would stare in silence, ask for the banana again, or take the nut and throw it at the researcher.
Vultures have stomach acid so corrosive, they can even digest anthrax.
In 1950, a German farmer told police that some of his chickens “exploded with a loud bang while running around the barnyard.” An investigation showed that the chickens ate bits of carbide left behind by allied soldiers during fall maneuvers, later drank some water and the resulting gas blew them to bits.