insessores

WORDNET DICTIONARY

insessores(n = noun.animal) order insessores, percher, perching bird - a bird with feet adapted for perching (as on tree branches); this order is now generally abandoned by taxonomists;

is a kind of animal order

is a member of aves, class aves

insessores, n. pl. [NL., fr. L. insessor, lit., one who sits down, fr. incidere. See Insession.].

An order of birds, formerly established to include the perching birds, but now generally regarded as an artificial group. [1913 Webster]