A passerine bird of the antbird family, Thamnophilus stictocephalus.

plural of Natterer's slaty antshrike

A toad of species Bufo calamita (or Epidalea calamita), known for its running lizard-like gait and very loud mating call.

plural of natterjack

(informal) talkative; chatty / peevish

(Northern England) Characterised or marked by nattering; nagsome