feathers

Budgie baldie: Pet bird cannot grow feathers because he was so stressed when he lived with a previous ownerCoco has psittacin beak and feather disease (PBFD) that stops the growth of feathersThe three-year-old budgie was…

Who is a pretty scary boy then? Bob the parrot sharpens his mouth, then inflates his feathers and walks threateningly to his ownerRecordings made by the owner in Minnesota show that Caique Bob is sharpening his beakThe parrot…

Hummingbirds owe their famous iridescent plumage to "pancake-like" cells in their feathers, according to new research.An international team of scientists conducted the largest optical study of its kind to find out why the native birds shine…