Having the bill or beak more or less yellow: specific in phrase-names of various birds.
The Century Dictionary (Public Domain)
Use "yellow-billed" in a sentence
"The birds include ten species of herons including grey heron Ardea cinerea, goliath heron A. goliath and yellow-billed egret Egretta intermedia, hammerkop Scopus umbretta, four of the six West African species of stork, ducks, five of the six West African species of vulture, hawks, plovers and francolins and black-winged stilt Himantopus himantopus."