Superb fairy-wrens teach their eggs a ‘secret password’ that the young can sing when they hatch. Those that sing the password get food, and the brood parasite eggs (which don’t learn the password) go hungry.
Owls fly silently due to specially designed edges of their primary feathers. When most birds fly, turbulence from air gushing over their wings creating noise. However, owls have their primary feathers serrated like a comb, which divides turbulence into tiny currents aka micro-turbulences.
City birds have learned to line their nests with cigarette butts in order to ward of parasites, as burnt nicotine works as an insecticide to ward off mites, lice and fleas.
Because birds such as pigeons have a much higher threshold for detecting movement, they would likely see a movie shown at today’s industry standard frame rate as a series of flashing slides
The highest flying bird is the Ruppell’s vulture; one was injested by a jet at 37,000 feet.
A Raven named Jimmy has starred in over 1,000 films between the 30s and 50s and could understand several hundred words and it took him just 1 week to learn a new word, 2 weeks if it had two syllables. His footprints were enshrined in cement at a large Los Angeles pet store, alongside Lassie.
Psychologist B. F. Skinner got pigeons to repeat strange “rituals” by dropping food into their cage at random intervals — the birds associated their actions before the treats with reward, and demonstrated superstitious repetition of those actions.
To preserve the harvest, Mao Zedong had all sparrows killed (along with rats, flies and mosquitoes) because they ate grain. The result was an ecological disaster that resulted in the birds’ natural prey devouring the harvest.
When people say “you eat like a bird” respond with “birds actually eat twice their body weight.”
There is evidence of early humans being killed and eaten by eagles.
In 2009, an estimated 31,000,000 birds died from being confused by light pollution while migrating overnight. Simply turning off the lights can potentially save tens of millions of birds from colliding with glass.
Crows are quite similar to humans and visit their aging parents many years after they have left the nest.