Shropshire Ravens on a roll
High the vanes of Shrewsbury gleam
Islanded in Severn stream...
There the ravens feasted far
Abouth the open house of war.
From A Shropshire Lad, A E Housman, 1896
Housman was referring to a time 'ages since', perhaps he had the Middle Ages in mind when Ravens Corvus corax would doubtless have been seen frequently in and around Shrewsbury.