Eagle-eyed bird-watchers, test your mettle—and your attention to detail—when you tackle our colorful and confounding Sibley's World of Birds Puzzle! Illustrated by famed ornithologist David A. Sibley, this 1,000-piece puzzle features more than 100 birds, including a chipping sparrow, a robin, a red-winged blackbird, a bluebird, a cedar waxwing, a pileated woodpecker, a cardinal, a nuthatch, several hummingbirds…the variety is astounding! Measures 19¼"x26 5/8" when complete.