The Collaborative International Dictionary of English v.0.48:

Picariae \Pi*ca"ri*[ae]\, n. pl. [NL., fr. L. picus a
   woodpecker.] (Zool.)
   An extensive division of birds which includes the
   woodpeckers, toucans, trogons, hornbills, kingfishers,
   motmots, rollers, and goatsuckers. By some writers it is made
   to include also the cuckoos, swifts, and humming birds.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Picariae
    n 1: term used in some classifications as nearly equivalent to
         the order Coraciiformes [syn: Picariae, order Picariae]