Pennsylvania Birds, Volumes 19-20

adult Allegheny American appeared arrived average Beaver Berks Bill bird birders Black Blackbird Blue breeding Bucks Chester Class Common continued County County Locations Creek Delaware Deuane Hoffman Duck Eagle early Eastern Erie fall feeder female field five flight flock Flycatcher flying four Goose Grebe Green Gull Hawk heard Heron Horned included Jerry John Fedak Lake Lancaster late least Lesser locations m.obs male March Mark McWilliams Merganser migration Miller nest Northern noted numbers observed pair PAMC Park Pennsylvania PENNSYLVANIA BIRDS period photographed Pine pond present probably rare record remained reported River Road Ruddy Duck Sandpiper season seen shorebirds sightings singing single Snow Sparrow species spring Steve summer Swallow Swans Tern Thrush Tree Turkey usual Valley Vireo Vulture Warbler West winter Wood Woodpecker Wren