![Essential Pittsburgh Archives show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/046/979/small/essential-pittsburgh.jpg)
Summary: Thousands of birds, commonly called seagulls, have made a rare migration south to roost at Pittsburgh’s North Shore. Bob Mulvihill, an ornithologist at...
Summary: Thousands of birds, commonly called seagulls, have made a rare migration south to roost at Pittsburgh’s North Shore. Bob Mulvihill, an ornithologist at...