The Flag of Flintshire is "Argent a cross engrailed sable between four Cornish choughs proper". In June, red-billed choughs fed on Lepidoptera larvae whereas Alpine choughs ate cranefly pupae. The family Corvidae includes crows, ravens, jays, choughs, magpies, treepies, nutcrackers and ground jays. The family Corvidae includes crows, ravens, jackdaws, jays, choughs, magpies, treepies, nutcrackers, and ground jays. The family Corvidae includes crows, ravens, jays, choughs, magpies, treepies, nutcrackers, and ground jays. The supporters are two Cornish choughs, each supporting an ostrich feather.