. . . . . . . . "1963-03-01T00:00:00Z"^^ . . "Oreothlypis celata" . . "Lepidoptera" . . "Root, R. B. 1967. The Niche Exploitation of the Blue-Gray Gnatcatcher. Ecological Monographs 37:317-50." . . . . "Allen Hurlbert. 2017. Avian Diet Database." .