What is "thornbird"

Thornbird \Thorn"bird`\, n. (Zo["o]l.) A small South American bird ( Anumbius anumbii) allied to the ovenbirds of the genus Furnarius). It builds a very large and complex nest of twigs and thorns in a bush or tree.

n. A small South American bird ((taxlink Anumbius anumbi species noshow=1)) that builds a large and complex nest of twigs and thorns.