Bill ɗin Cokali na gama-gari nau'in tsuntsu ne na dangin Threskiornithidae. Kalmar “na kowa” a wannan mahallin tana nufin cewa nau’in tsuntsu ne wanda ya yaɗu kuma ake yawan gani a yankuna da dama na duniya. Kalmar “spoonbill” tana nufin sifar baki, mai tsayi da lallashi a saman, kama da cokali. An daidaita wannan siffar baki don kama ƙananan kifi, crustaceans, da sauran halittun ruwa a cikin ruwa mara zurfi. Gabaɗaya, Cokali na gama-gari wani tsuntsu ne na musamman tare da farar jiki, baƙaƙen ƙafafu, da lissafin takamaiman nau'in cokali.