Quote by Amy Tan

“I asked Bernd Heinrich if he knew why feeder birds, like finches, discard so many seeds. It turns out he and other scientiests did research on this back in the 1990s - of course, he did -measuring discarded seeds with painstaking accuracy. The short answer: Songbirds prefer shorter, fatter unshelled sunflower seeds, more depth than length, because they contain more oil. They take half a second to judge the seeds, dropping the low-density ones, until they find a seed to their liking.”

Quote by Amy Tan