a grey crow corvus tristis on the top of the allahverdi khan bridge, also known as si-o-seh pol of esfahan in iran against

africa allahverdi ancient animal autumn avian background barefaced beak bill bird black blackbird blue bridge castle corvus crow crows death eater esfahan fauna feather food grey hooded iran isfahan khan liberty looking meat nature necked old plumage pol raven ruins scavenger sioseh sky south spread tehran tristis wall white wild wildlife wing