. . . . . . . . "1985-06-01T00:00:00Z"^^ . . "Poecile atricapillus" . . "Coleoptera" . . "Cooper, R. J. 1988. Dietary relationships among insectivorous birds of an eastern deciduous forest. Doctoral Dissertation. West Viriginia University." . . . . "Allen Hurlbert. 2017. Avian Diet Database." .